Cumulus.ini (preserving history)

The cumulus.ini configuration file is a text file containing initialization parameters used by the Cumulus application, and is read only when Cumulus starts up. It is located in the directory in which you installed Cumulus and is updated whenever you change any configuration parameters from the application configuration pages. Cumulus also re-writes the file when it shuts down, so if you want to edit the file yourself, make sure Cumulus is stopped. Note that some configuration settings can only be applied by editing this file; they do not appear anywhere in the configuration screens. Cumulus does not write these values back out to the file, so they do not appear with default values - in other words, you need to add them if you want to set them. Note also that if your system is configured to use a comma for a decimal separator, then you should use a comma in any decimal values that you set in this file.

Section: Station

INI Line Entry	Function
[Station]	Section name - the following parameters relate to the station configuration.
Type=-1	Station Type as set by the checked radio box in the Station Configuration Screen, Station Type block 0=Vantage Pro 1=Vantage Pro2 2=WMR-928 3=WM-918 4=EasyWeather (using .dat file) 5=Fine Offset/Watson/MyDel etc 6=WS2300 7=Fine Offset with Solar Sensors 8=WMR100 9=WMR200
Model="yourModel"	Whatever you have entered for Station Model on the Station Configuration Screen Settings block.
Port=0	Com port in your computer which is connected to your weather station if connected via a serial port. Defaults to port 0.
Latitude=0	Latitude in Decimal Degrees based on what you have entered for Latitude Degrees, Minutes, Seconds in the Station Configuration Screen Location block Positive for North, Negative for South
Longitude=0	Longitude in Decimal Degrees based on what you have entered for Longitude Degrees, Minutes, Seconds in the Station Configuration Screen Location block Positive for East, Negative for West
LatTxt=	Latitude in text string format of hemisphere degrees minutes and seconds. HTML ampersand codes are used for spaces and DMS characters.
LonTxt=	Longitude in text string format of hemisphere degrees minutes and seconds. HTML ampersand codes are used for spaces and DMS characters.
Altitude=0	your station altitude as entered in the Station Configuration Screen Location block.
AltitudeInFeet=1	Altitude measurement unit as set in the Station Configuration Screen Location block. 0 = meters ASL 1 = feet ASL
Humidity98Fix=0	Selected in the Station Configuration Screen Settings block. 0 = Disabled (default) 1 = Enabled, humidity displayed and recorded as 100% if your sensor registers a relative humidity of 98% or greater. Normally only useful for Oregon Scientific stations.
Wind10MinAverage=0	Selected in the Station Configuration Screen Settings block. 0 = Disabled (default) 1 = Enabled, Cumulus will calculate and display a 10-minute average wind speed instead of using the value supplied by the station.
CalculatedDP=0	Selected in the Station Configuration Screen Settings block. 0 = Disabled 1 = Enabled, Cumulus will calculate the dew point instead of using the value supplied by the station. This avoids the restriction in the Oregon Scientific stations where the dew point can never be below freezing point.
CalculatedWC=0	Selected in the Station Configuration Screen Settings block. 0 = Disabled 1 = Enabled, Cumulus will calculate the wind chill instead of using the value supplied by the station. Note that some stations (Fine Offset, for example, do not supply a wind chill value anyway, so Cumulus always calculates it). You should set this if you have specified any calibration values for wind or temperature, so that Cumulus can also apply those values to the wind chill.
UseWindChillCutOff=1	Calculate Wind chill only if temperature less than 10°C rule. 0 = Disabled (default) 1 = Enabled, this line needs to be added in the [Station] section of the Cumulus.ini Note that you need to set Cumulus to calculate the wind chill (if your station is a type that supplies one itself) for this setting to have any effect.
ChillHourSeasonStart=10	The season start figure is the calendar month number (1 to 12)
ChillHourThreshold=45	The temperature threshold is specified in the units that you use in Cumulus (see Heat/cold_degree_days_and_Chill_hours)
RolloverHour=0	Log roll over time as selected on the Station Configuration Screen 0 = midnight 9 = 9am
Use10amInSummer=1	Daylight saving correction for 9am roll over 0 = Use 10am in summer not checked on Station Configuration Screen 1 = Use 10am in summer selected on Station Configuration Screen
SnowDepthHour=9	Snow lying/falling roll over time (time when yesterday's values in log.xml are forgotten) 0 = midnight 9 = 9am
ConfirmClose=0	Confirm you wish to close Cumulus application after telling it to close 0 = Disabled, application will close immediately 1 = Enabled, application will prompt for confirmation that you wish to close it
CloseOnSuspend=1	If this is selected, Cumulus will close if you suspend/standby/hibernate your computer. You should not select 'Confirm shutdown' if you use this option. 0 = Disabled, application will not close if you suspend/standby/hibernate your computer 1 = Enabled, application will close on suspend/standby/hibernate of your computer
RestartIfUnplugged=0	Cumulus will restart if it detects that a Fine Offset station is unplugged. 0 = Disabled 1 = Enabled
SyncDavisClock=0	When set, at start-up, Cumulus will set the Davis VP/VP2 clock to the same time as the PC 0 = Disabled 1 = Enabled
DataLogInterval=2	Data log interval as selected in the Station Configuration Screen Data log interval block 0 = 1 min 1 = 5 mins 2 = 10 mins 3 = 15 mins 4 = 20 mins 5 = 30 mins
WindUnit=0	Wind measurement unit Cumulus records in as selected in the Station Configuration Units block 0 = m/s 1 = mph 2 = km/h 3 = kts
PressureUnit=0	Pressure measurement unit Cumulus records in as selected in the Station Configuration Units block 0 = mb 1 = hPa 2 = in
RainUnit=0	Rain measurement unit Cumulus records in as selected in the Station Configuration Units block 0 = mm 1 = in
TempUnit=0	Temperature measurement unit Cumulus records in as selected in the Station Configuration Units block 0 = Centigrade 1 = Fahrenheit
LocName=	Location Name as entered on in the Station Configuration Screen
LocDesc=	Location Description as entered in the Station Configuration Screen
StartDate=13/08/2009	The date at which your records commenced. By default this will set to the date of initial installation of the application.
LastLoggerDownload=13/08/2008 12:48:52	The date/time of the last down load from your weather station (note: no longer used)
YTDrain=0	Year to date correction if starting part way through year as entered in the Station Configuration Screen. Default is 0.
YTDrainyear=0	The year for which the YTDrain is to be applied. Default is 0
EWInterval=0	Easyweather interval in minutes as entered in the Station Configuration Screen Settings block.
EWFile=	Easyweather.dat file path/name as entered in the Station Configuration Screen Settings block.
UseDataLogger=1	If selected, at start-up, Cumulus will download data from the stations data logger (if it has one) to catch up from the point where Cumulus was last shut down. 0 = Disabled 1 = Enabled (Default)
UseCumulusForecast=0	From the Station Configuration Screen Forecast block, if selected Cumulus will generate a simple weather forecast, if your station does not supply one, or as an alternative to the one supplied by your station. See the Forecast webtag for more information. 0 = Disabled (default) 1 = Enabled
UseCumulusPresstrendstr=0	Set in the Station Configuration Screen Settings block. If selected Cumulus will generate the name for the current pressure trend, e.g. "Falling", "Rising quickly" etc, instead of the one supplied by your station. The names used are those in the UK Shipping Forecast. Note that some stations do not supply this anyway, so setting this has no effect (Cumulus always generates the names for those stations). 0 = Disabled 1 = Enabled
FCpressinMB=1	Forecast pressure unit as selected in Station Configuration Forecast block 0 = inches 1 = mb
FClowpress=950	Low Pressure extreme limit as entered in the Station Configuration Forecast block. Default is 950mb
FChighpress=1050	High Pressure extreme limit as entered in the Station Configuration Forecast block. Default is 1050mb
ForceVPBarUpdate=0	Set this in the Station Configuration Screen Settings block. Select to force the Vantage Pro (and Pro2) barometer to update once a minute instead of the default 15 minutes. Note that you may not need this, more recent stations already update every minute 0 = Disabled 1 = Enabled
UseZeroBearing=0	Set this in the Station Configuration Screen Settings block. 0 = Disabled, Cumulus displays the current bearing read from the station (i.e. the last direction the wind was blowing from before it became calm). Note that the average wind bearing will always display zero bearing if there has been no wind for the last 10 minutes, as the average bearing takes wind speed into account. 1 = Enabled, Cumulus display a bearing of zero (and '---' for the compass point) when the wind is calm
VP2ConnectionType=0	Weather station connection type as selected in the Station Configuration Screen VP type block 0 = serial 1 = usb 2 = TCP/IP
VP2TCPPort=22222	Comunications port used if VP type has TCP/IP selected. Default is 2222
VP2IPAddr=0.0.0.0	Weather station IP address if VP type has TCP/IP selected. Default is 0.0.0.0
WarnMultiple=0	Multiple Instances of Cumulus running on PC 0 = Disabled, (default) Multiple instances allowed. 1 = Enabled, prevents multiple instances of Cumulus from running. Requires a Cumulus restart to take effect.
CloudBaseInFeet=1	Cloud base measurement unit 0 = meters 1 = feet (default)
EWTempdiff=x.y	Enter this line in the [Station] section of the Cumulus.ini to filter erroneous temperature readings from your sensor. Replace x.y with the maximum difference in degrees C you are prepared to accept between successive data readings
WMR928TempChannel=N	For WMR928 stations (and other stations using the same protocol, eg WMR968) to use an 'extra' channel as your main temperature sensor, set N to the required channel
RTdisconnectcount=60	Option periodically disconnect the realtime FTP connection, the theory being that it will not get stuck if the servier dies, and wil keep trying to reconnect. Enter this line in the [Station] section of the Cumulus.ini The '60' is an example; it represents the number of realtime ftp uploads between disconnections - so 60 would give an hour if 1 minute realtime interval selected.
EWpressureoffset=x.y	Got a pressure problem with a Fine Offset station? This can occur on startup when the pressure 'offset' that Cumulus reads is garbage, so Cumulus just uses zero (so effectively you end up with your absolute pressure being recorded instead of relative pressure). There's a work around for this by telling Cumulus what offset to use, rather than reading it from the station. You specify it in cumulus.ini by adding a line to the [Station] section: where x.y is the difference between your station (absolute) and sea-level (relative) pressures, in mb/hPA.
Logging=1	Add to cumulus.ini [Station] section to have Cumulus start with debug logging on
VP2SleepInterval=x	where x is sleepinterval in milliseconds This is the period which Cumulus waits between reads of the data from Davis stations. The default is 500 ms; if you suspect that data is being missed, you could try reducing this figure. For VirtualVP users, tests revealed that VP2SleepInterval = 1100 seems to work the best. It updates every two seconds with few exceptions.
WS2300Sync=1	This makes Cumulus check the time that the station is going to communicate with the sensors, and synchronises all of its reads to be 2.5 seconds after that. Experiments have shown that this does not help the bad data situation.
VPClosedownTime=x	where x is the number of seconds after the start of the re-connect attempts that you want the program to close itself.
EWduplicatecheck=0	Add this line to cumulus.ini [Station] section if application gets stuck in the download stage.
LCMaxWind=X	To use the cumulus.ini setting for the La Crosse max wind speed add to the [station] section, where X is the maximum (uncalibrated) wind speed in m/s that you want to allow. (V1.8.8 Build 874 on)
AvgSpeedMinutes=N	where N is the number of minutes over which Cumulus calculates its average speed, if you have Cumulus set to do this. Default = 10.
AvgBearingMinutes=N	where N is the number of minutes over which Cumulus calculates its average bearing. Default = 10.
ListWebTags=1	Add this entry to make Cumulus create a file called webtags.txt that contains an unsorted list of all the webtags that Cumulus supports
EWmaxHourlyRain=999	An hourly rain rate 'spike' filter, changes in value greater than the value specified here will be ignored by Cumulus
EWmaxRainRate=999	A rain rate 'spike' filter, changes in value greater than the value specified here will be ignored by Cumulus
EWpressurediff=999	A pressure change 'spike' filter, changes in value greater than the value specified here will be ignored by Cumulus
EWhumiditydiff=999	A humidity change 'spike' filter, changes in value greater than the value specified here will be ignored by Cumulus
EWgustdiff=999	A wind gust 'spike' filter, changes in value greater than the value specified here will be ignored by Cumulus
EWwinddiff=999	A wind speed 'spike' filter, changes in value greater than the value specified here will be ignored by Cumulus
RestartIfDataStops=0	Option to restart Cumulus if data stops. This may fix whatever the problem is; it may not. But it should at least stop the same data being repeatedly logged. 0 = Disabled (default) 1 = Enabled
WS2300IgnoreStationClock=0	Option to ignore the La Crosse station clock on logger download. 0 = Disabled (default) 1 = Enabled
ReportDataStoppedErrors=0	Option to turn off reporting of 'data stopped' errors to the Cumulus error log (may be needed with La Crosse stations) 0 = Disabled (default) 1 = Enabled
RainSeasonStart=1	The month of the year that is used as the start of the annual 'rain season'. Default = 1 = January.
RainDayThreshold=-1	The threshold value which the daily rainfall has to equal or exceed for the day to be considered a 'rain day'. Default -1 = 0.2mm or 0.01in. Value is entered in your current rain units.
NoFlashWetDryDayRecords=1	When set to 1 stops new Longest Wet/Dry Period records being 'flashed'
UseSpeedForAvgCalc=0	When enabled (=1) Cumulus will use the longer-term 'speed' values in the average speed calculation. The 'Use 10-min average wind speed' option must be selected for this option to have any effect.
HourlyForecast=0	If Cumulus is set to generate a forecast, this setting (=1) causes the forecast to be updated only once an hour (on the hour).
RoundWindSpeed=0	When set to 1, this setting causes wind speeds rounded to the nearest integer.
VP2PeriodicDisconnectInterval=0	Causes Cumulus to disconnect for the specified number of seconds, once a minute, on the minute (or as close as possible) to allow the Weatherlink IP to connect to the Davis Weatherlink site. Set it to zero to disable, if you are not using the Weatherlink site.
EWminpressureMB=900	Cumulus will ignore all pressure readings from the station that are less than this value (units are always hPa/millbars)
EWmaxpressureMB=1200	Cumulus will ignore all pressure readings from the station that are greater than this value (units are always hPa/millbars)
ErrorLogSpikeRemoval=0	???
LogExtraSensors=0	Set this to 1 if you have additional sensors (e.g. a Davis Leaf Wetness probe) to make Cumulus read, display, and log the readings from the sensors. You don't need to select this for Solar/UV sensors.
DavisCalcAltPress=1 >>Added in Beta 1.9.3 b1036<<	Davis stations calculate Sea Level Pressure from Station Pressure using a formula based on several parameters such as temperature, humidity, etc, rather than just using altitude as most other stations. CWOP require 'Altimeter Pressure' to be uploaded, i.e. a value calculated simply using altitude. The station does not provide this value directly, nor the station pressure, so Cumulus has to read some extra data once a minute in order to do the calculation. This can take several seconds, so it means that a 'normal' data reading may be missed. If you don't use CWOP, or you are happy for Cumulus to send Sea-Level pressure to CWOP (the difference is small unless you are at high altitude), set this value to 0. Cumulus will then use the Sea-Level Pressure value instead of the Cumulus calculated Altimeter Pressure. 0 = Disabled 1 = Enabled (default)
UVdecimals=1 >>Added in Beta 1.9.3 b1038<<	UV values are now displayed and logged as whole numbers by default. You can change this by adding this entry specifying the number of decimal places. 0 = Integer Values (default) n = Number of decimal places
NoSensorCheck=1 >>Added in Beta 1.9.3 b1038<<	The option (for 'incomplete' stations) to disable the sensor check described in this FAQ 0 = Sensor check enabled (default) 1 = Sensor check disabled
RG11port=1 >>Added in Beta 1.9.3 b1040<<	Specifies the COM port to use for Hydreon RG-11 rain detection devices. 1 = COM1
RG11TBRmode=1 >>Added in Beta 1.9.3 b1040<<	Specifies the Hydreon RG-11 rain device mode of operation. 0 = Rain detection mode - "It's Raining" 1 = Tipping bucket mode
RG11tipsize=0.01 >>Added in Beta 1.9.3 b1040<<	Specifies the tipping bucket size for Hydreon RG-11 rain detection devices. The 'tip size' must be specified in the units that you have configured Cumulus to use for rain.
RG11port2= RG11TBRmode2= RG11tipsize2= >>Added in Beta 1.9.3 b1040<<	Settings to connect a second Hydreon RG-11 rain detection device. Note that you must have one RG-11 set to "It's raining" mode and the other to "tipping bucket" mode. Cumulus does not validate this.
SyncFOReads=1 >>Added in Beta 1.9.3 b1055<<	Specifies the Fine Offset synchronisation mode of operation. 0 = default 1 = Re-synchronizes each day

Section: Web Site

INI Line Entry	Function
[Web Site]	Section Name - the following parameters relate to your website
ForumURL=http://sandaysoft.com/forum/	Your website URL
WebcamURL=http://www.sanday.org.uk/webcam/webcam.php	URL for your Webcam

Section: FTP Site

INI Line Entry	Function
[FTP site]	Section Name - the following parameters relate to your website FTP parameters
Host=	This is the name (or the IP address) of the ftp server which you connect to when you upload pages to your web site
Port=21	Port used for FTP upload, default =21
Username=	your web site FTP login Username as entered in the Internet Configuration Screen
Password=	your web site FTP login password as entered in the Internet Configuration Screen (note: this is not encrypted)
Directory=	Directory (including path)on your server to which FTP will upload the files
AutoUpdate=0	Set in the Internet Configuration Screen Web Settings block. 0 = Disabled 1 = Enabled, Cumulus will automatically upload your updated web pages to your web site at regular intervals (as specified by the 'Update Interval')
ActiveFTP=0	Set in the Internet Configuration Screen Web Settings block. 0 = Disabled 1 = Enabled, Cumulus will use 'active' FTP mode instead of the default 'passive' mode. You should only select active mode if you are having problems with FTP uploads.
EnableRealtime=0	Set in the Internet Configuration Screen Web Settings block. 0 = Disabled 1 = Enabled, Cumulus will upload a file called realtime.txt to your web site, at the interval specified by Realtime Interval (see below). This file contains various weather parameters and is used by the CumulusRealtime.swf real time wind gauges (as on the supplied 'gauges' web page. If you don't have this option selected, but do have the 'auto update' option set (and a suitable interval configured), Cumulus will still create the realtime.txt file at the specified Interval (not the Realtime Interval) so that you can specify it as an extra file to upload during the 'normal' upload, or use it for any other purpose on your PC.
RealtimeInterval=3000	Set in the Internet Configuration Screen Web Settings block. The time in seconds between uploads of the realtime.txt file.
UpdateInterval=15	Set in the Internet Configuration Screen Web Settings block. The interval in minutes at which you wish auto updates to occur.
IncludeSTD=1	Selected in the Internet Configuration Files Tab screen 0 = Disabled 1 = Enabled, (default) the standard web files provided with Cumulus will be processed and uploaded at each web update.
IncludeSTDImages=1	Selected in the Internet Configuration Files Tab screen 0 = Disabled 1 = Enabled,(default) the standard image files generated by Cumulus (graphs, etc) will be uploaded at each web update.
FTPRename=0	Selected in the Internet Configuration Files Tab screen 0 = Disabled 1 = Enabled,
DeleteBeforeUpload=0	Selected n Internet Configuration Screen Sites/Options tab Web Settings block 0 = Disabled default 1 = Enabled, files are deleted from sever before the new update is loaded
ResizeGraphs=0	Selected in the Internet Congfiuration Screen Web graphs block. 0 = Disabled (default) Cumulus uploads the default 750 x 300 pixel graphs. 1 = Cumulus resizes the large graph images when creating them for upload to your web site. Specify the required height and width in the corresponding boxes. Note that the images are simply scaled to the new size; there will be some loss of quality
GraphHeight=300	Graph height, default is 300 (pixels)
GraphWidth=750	Graph width, default is 750 (pixels)
ImageFolder=	Path and file name of folder to which the image files are copied at each web update interval, either the 'normal' interval, or the 'realtime' interval, depending on whether or not the 'realtime?' box is ticked.
ImageCopyRealtime=0	Selected in the Internet Configuration File tab screen 0 = files copied in 'normal' interval each web update (default) 1 = files copied in 'real time' interval.
ExtraLocal[0-9]=	Path and file name on local computer for alternate files #0 through #9. Set in Internet Configuration Screen Files tab.
ExtraRemote[0-9]=	Path and file name on web server for alternate files #0 through #9. Set in Internet Configuration Screen Files tab.
ExtraProcess[0-9]=0	Set in Internet Configuration Screen Files tab. 0 = Disabled, (default) file will not pass through the cumulus 'tag processor'. 1 = Enabled, file will be passed through the 'tag processor' in Cumulus, in the same way that the standard Cumulus web pages are. This allows to you to create your own web pages into which Cumulus will insert the various weather parameters. See the "Web tags" section of the help file for a list of the tags which you can use. Cumulus will create a temporary file to hold the processed version of your file and then upload that.
ExtraBinary[0-9]=0	Set in Internet Configuration Screen Files tab. 0 = not binary (e.g. HTML file) 1 = Binary (e.g. images)
ExtraRealtime[0-9]=0	Set in Internet Configuration Screen Files tab. If you select this for any files, you will also need to select the Realtime option. 0 = Disabled, (default) file uploaded as part of normal upload 1 = Enabled, file uploaded during Realtime upload
ExtraFTP[0-9]=1	Set in Internet Configuration Screen Files tab. 0 = Disabled, File copied to the location specified in the Remote Filename box. 1 = Enabled, (default) File uploaded by FTP
ExtraLocal[10-19]=	Path and file name on local computer for alternate file #10 through #19. These additional files can only be set via the configuration file, they are not visible in the Internet Configuration screen Files tab.
ExtraRemote[10-19]=	Path and file name on web server for alternate file #10 through #19. These additional files can only be set via the configuration file, they are not visible in the Internet Configuration screen Files tab.
ExtraProcess[10-19]=0	Set in this config file only. 0 = Disabled, file will not pass through the cumulus 'tag processor'. 1 = Enabled, file will be passed through the 'tag processor' in Cumulus, in the same way that the standard Cumulus web pages are. This allows to you to create your own web pages into which Cumulus will insert the various weather parameters. See the "Web tags" section of the help file for a list of the tags which you can use. Cumulus will create a temporary file to hold the processed version of your file and then upload that
ExtraBinary[10-19]=0	Set in this config file only. 0 = not binary (e.g. HTML file) 1 = Binary (e.g. images)
ExtraRealtime[10-19]=0	Set in this config file only. If you select this for any files, you will also need to select the Realtime option. 0 = Disabled, file uploaded as part of normal upload 1 = Enabled, file uploaded during Realtime upload
ExtraFTP[10-19]=1	Set in this config file only. 0 = Disabled, File copied to the location specified in the Remote Filename box. 1 = Enabled, File uploaded by FTP
RealtimeFTPEnabled=0	When set to 1 Cumulus will establish an FTP connection to your web site, so that the realtime.txt file, and any other files you specify, can be uploaded when realtime processing takes place. The 'EnableRealtime' setting must be set to 1 for this setting to have any effect.
RealtimeTxtFTP=0	When set to 1 Cumulus will upload the realtime.txt to your web site during realtime processing. The 'EnableRealtime' and 'RealtimeFTPEnabled' settings must both be set to 1 for this setting to have any effect.
ExternalProgram=	The name (including path) of a command-line program to be run at the 'normal' web update interval, after all of the processing has been performed.
ExternalParams=	The corresponding 'paramaters' for 'ExternalProgram' used to specify any parameters to be passed to the command.
RealtimeProgram=	The name (including path) of a command-line program to be run at the 'realtime' web update interval, after all of the processing has been performed.
RealtimeParams=	The corresponding 'paramaters' for 'RealtimeProgram' used to specify any parameters to be passed to the command.
DailyProgram=	The name (including path) of a command-line program to be run once a day, after the daily 'rollover' has been performed.
DailyParams=	The corresponding 'paramaters' for 'DailyProgram' used to specify any parameters to be passed to the command.

Section: Display

INI Line Entry	Function
[Display]	Section heading - the following parameters affect the way things are displayed.
Heading=My Weather	Title Heading on the Main Screen. Set in the Display Configuration Screen General block
MinimizeToTray=0	Set in the Display Configuration Screen General block 0 = Disabled (default) 1 = Enabled, causes Cumulus to appear as an icon in the system tray when it is minimized. The icon will flash if a record is broken or an error occurs. Double click on the icon to restore the main window (or right click on the icon and use the pop-up menu).
ForecastCentred=0	Set in the Display Configuration Screen General block. 0 = Disabled, (default) Forecast appears left justified on main screen 1 = Enabled, Forecast appears centred on main screen
FontColour=4227327	Decimal code for the screen font color
BackColour=12632256	Decimal code for the application background color
HeadingColour=10485760	Decimal code for the screen heading color
ClockColour=-16777201	Decimal code for the main screen clock background color (
DisplaySolarData=0	Set in the Display Configuration Screen General block. 0 = Disabled (default) 1 = causes Vantage Pro solar data (ET, UV and Solar radiation) to be displayed on the main screen (if supported by the station), or extra sensor data in the case of Oregon WMR-928 stations.
DisplayCloudBase=0	Set in the Display Configuration Screen General block. 0 = Disabled, (default) 1 = Enabled, the calculated cloud base is displayed on the main screen. The calculation is a simple one; 1000 feet for every 4.5 degrees Fahrenheit difference between the temperature and the dew point.
TwelveHourClock=0	Set by left click on clock on main screen 0 = 24Hr clock mode 1 - 12 Hr am/pm clock mode
WMR928Channel1Caption=Extra channel 1	Set the captions on the main screen which are displayed along with the extra channel data for WMR928 stations.
WMR928Channel2Caption=Extra channel 2	Set the captions on the main screen which are displayed along with the extra channel data for WMR928 stations.
WMR928Channel3Caption=Extra channel 3	Set the captions on the main screen which are displayed along with the extra channel data for WMR928 stations.
WindGaugeRange=50	Sets the default full scale deflection of the wind speed gauge
SnowUnitText=cm	Snow measurement unit. Default is cm
DisplayHumidex=0	Set in the Display Configuration Screen General block 0 = Disabled (default) Heat Index displayed on main screen. 1 = Enabled, calculated Humidex value to be displayed on the main screen instead of Heat Index. Note that Cumulus displays degrees C or F for Humidex, whereas strictly speaking it is unitless. This is for the convenience of those who use Fahrenheit but would still prefer to see Humidex displayed, where it might be confusing to show the unconverted value.
LegendSymbolWidth=3	The width of the plot lines in graph ledgends
WindRoseColour=8388608
ShowCurrentConditions=0
NumWindRosePoints=16	The number of points to plot on the Wind Rose diagram (suggest 8 for FO stations)
ChartLineWidth=2	The width of the plot lines in the graph body
ClockDigitColour=4227327
WindRoseTransparency=50
WindGaugeAnimated=1	Anitmate the Wind Gauge pointer movement 0 = Disabled, 1 = Enabled (default)
WindGaugeAnimationFactor=2	This sets the speed of the wind gauge animation. Lower values correspond to a faster animation speed. Be careful not to set the animation too slow, particularly with stations which update frequently (e.g. Davis) as the animation will never catch up, and will use significant CPU time.
CompassColour=12632256
CompassTickColour=16711680
CompassLabelColour=16777215
CompassBearingColour=0
CompassCurrentPointerColour=255
CompassAveragePointerColour=16711680
WindRoseLabelColour=0
TransparentGauges=0	The square backgrounds of the three wind gauges on the Cumulus main screen can be the same colour as the main window background, or, with this option selected, the images will be processed to make the background colour transparent.
LogFTPErrors=1	Controls logging of FTP errors to the Cumulus Error Dialog display, set to 0 to suppress the logging of FTP errors.
SavePosition=0	If set to 1, the current position of the main window will be saved to cumulus.ini when Cumulus closes, and the window will open again at that position the next time Cumulus starts.
StartMinimised=0	If set to 1, Cumulus will start with the main window minimised, either to the system tray or the task bar, depending on the 'Minimise to tray' setting.
LabelColour=0
PanelHeadingFontColour=0
PanelLineColour=0
PanelBorderColour=8421504
PanelGradientColourFrom=16777215
AlarmColour=255
PastAlarmColour=16711680
PanelGradientColourTo=13226453
WindGaugeArcColour=16773091
WindGaugeTickColour=9841920
WindGaugeFontColour=9841920
WindGaugeInnerCircleColour=16765615
WindGaugeNeedleColour=128
WindGaugeInnerCentreColourFrom=16765615
WindGaugeInnerCentreColourTo=16765615
WindGaugeOuterCentreColourFrom=16765357
WindGaugeOuterCentreColourTo=16711680
WindGaugeOuterCircleColour=16765615
WindGaugeOuterRimColour=9470064
WindGaugeAverageSectorColour=32768
WindGaugePeakSectorColour=33023
WindRoseAxesColour=8388608
WindGaugeNeedleShineColourFrom=1049273
WindGaugeNeedleShineColourTo=328090
DisplayBeaufortDesc=1	If set to 1, the Beaufort description of the current average wind speed will appear in the header of the wind panel on the main screen. If set to 0, it will instead appear as a 'tool tip' for the wind panel.
DisplayBarometerTrendText=1	If set to 1, the description of the current barometer trend will appear in the header of the barometer panel on the main screen. If set to 0, it will instead appear as a 'tool tip' for the barometer panel.
UpdateAtStartup=1	If set to 1, the the display will be updated as data is downloaded and processed from the station's logger. This increases the time taken to process the data. If set to 0, it makes the download faster; this may be significant if there is a lot of data to download.
IndependentGraphsWindow=0
DigitBackground=0

Section: WUnderground

INI Line Entry	Function
[Wunderground]	Section Name - Parameters for your Weather Underground site
ID=	Your Weather Underground station identifier (note: not your user name).
Password=	Your Weather Underground password. (note: not encrypted)
Enabled=0	Set if you wish to upload to your Weather Underground site 0 = Disabled, (default) no Weather underground site 1 = Enabled, data sent at the interval specified below
RapidFire=0	'rapid fire' mode. 0 = Disabled (default) 1 = Enabled, You should also tick 'Enabled'. Rapid fire updates occur every 5 seconds.
Interval=15	Time in minutes between uploads to Weather Underground. (default = 15)
SendUV=0	Current UV value 0 = Disabled (default) no UV info sent 1 = Enabled, UV value sent with the data
SendSR=0	Solar Radiation 0 = Disabled (default) no solar data sent 1 = Enabled, Solar Radiation value sent with data
SendAverage=0	Causes average wind speed and directon to be sent rather than instantaneous/gust speed and direction. 0 = Disabled (default) instantaneous/gust speed data sent 1 = Enabled, average wind speed sent with data
CatchUp=1	If possible send missing historic data to the server on startup 0 = Disabled 1 = Enabled (default)

Section: Twitter

INI Line Entry	Function
[Twitter]	Section Name - the following parameters relate to your Twitter site parameters
User=	your Twitter login username
Password=	your Twitter login password (note: this is not encrypted)
Enabled=0	Set in Internet Configuration Screen Twitter block 0 = Disabled (default) 1 = Enabled, tweats sent at the specified interval.
Interval=60	interval in minutes that Tweats will be sent.
OauthToken=	??
OauthTokenSecret=	??

Section: PWSweather

INI Line Entry	Function
[PWSweather]	Section Name - the following parameters relate to your PWS weather site parameters
ID=	Your PWS Weather station identifier (note: not your user name)
Password=	your PWS weather site login password (note: this is not encrypted)
Enabled=0	Select in Internet Configuration Screen PWS Weather block 0 = Disabled (default) no data sent to PWS 1 = Enabled, data sent to PWS at the specified interval
Interval=15	Interval in minutes that updates will be sent to your PWS weather site
SendUV=0	Current Ultra Violet level 0 = Disabled (default) 1 = Enabled, UV level sent with normal data
SendSR=0	Solar Radiation level 0 = Disabled (default) 1 = Enabled, Solar radiation reading sent with normal data
CatchUp=1	If possible send missing historic data to the server on startup 0 = Disabled 1 = Enabled (default)

Section: APRS

INI Line Entry	Function
[APRS]	Section Name - the following parameters relate to your APRS weather site parameters
ID=	Your APRS identifier
pass=-1	your APRS password (Note: not encrypted)
server=cwop.aprs.net	The APRS server to use
port=14580	The port number to use on the APRS server.
Enabled=0	Select in Internet Configuration Screen APRS Settings block
Interval=9	Time in minutes between uploads to the APRS server
APRSHumidityCutoff=1	For Oregon Scientific, so it doesn't report humidity to APRS when the temperature is below -10°C
SendSR=0	Solar Radiation level 0 = Disabled (default) 1 = Enabled, Solar radiation reading sent with normal data

Section: WOW

INI Line Entry	Function
[WOW]	Section Name - the following parameters relate to your [1] weather site parameters
ID=	Your WOW station ID
Password=	your WOW password (Note: not encrypted)
Enabled=1	Updates enabled/disabled
Interval=15	Time in mimutes between uploads to the WOW server
SendUV=0	Current Ultra Violet level 0 = Disabled (default) 1 = Enabled, UV level sent with normal data
SendSR=0	Solar Radiation level 0 = Disabled (default) 1 = Enabled, Solar radiation reading sent with normal data
CatchUp=1	If possible send missing historic data to the WOW server on startup 0 = Disabled 1 = Enabled (default)

Section: Weatherbug

INI Line Entry	Function
[Weatherbug]	Section Name - the following parameters relate to your [2] weather site parameters
ID=	Your Weatherbug station ID
Password=	your Weatherbug password (Note: not encrypted)
Enabled=1	Updates enabled/disabled
Interval=15	Time in mimutes between uploads to the Weatherbug server
SendUV=0	Current Ultra Violet level 0 = Disabled (default) 1 = Enabled, UV level sent with normal data
SendSR=0	Solar Radiation level 0 = Disabled (default) 1 = Enabled, Solar radiation reading sent with normal data
CatchUp=1	If possible send missing historic data to the server on startup 0 = Disabled 1 = Enabled (default)

Section: Graphs

INI Line Entry	Function
[Graphs]	Section Name - the following parameters relate to your graph settings
GraphHours=12	The number of hours data to be displayed in each graph. You can select 12, 24 or 48 from the Display Settings, and you can also edit cumulus.ini and set this item to any other value. But note that setting it to a non-standard value is unsupported (i.e. if it causes problems, I probably won't fix them) and if you change any display settings, the value will get reset to a supported value (so you'll need to edit cumulus.ini again).
Background=12632256	Decimal value for the Graph background colour.
WindColour=65535	Decimal value for the 10 minute average wind speed plot colour
GustColour=8421376	Decimal value for the Wind Gust plot colour
RainColour=9527753	Decimal value for the Rain plot colour
RainTodayColour=9527753	Decimal value for the Rain Today plot colour
TempColour=9527753	Decimal value for the Temperature plot colour
HeatIndexColour=16711680	Decimal value for the Heat Index plot colour
PressColour=9527753	Decimal value for the Pressure plot colour
WindDirColour=255	Decimal value for the Wind Direction plot colour
DewPointColour=255	Decimal value for the Dew Point plot colour
WindChillColour=32768	Decimal value for the Wind Chill plot colour
MinTempColour=16711680	Decimal value for the Minimum Temperature plot colour
MaxTempColour=255	Decimal value for the Maximum Temperature plot colour
AvgTempColour=32768	Decimal value for the Average Temperature plot colour
DailyRainColour=32768	Decimal value for the Daily Rain plot colour
InsideTempColour=0	Decimal value for the Inside Temperature plot colour
InsideHumColour=255	Decimal value for the Inside Humidity plot colour
OutsideHumColour=16711680	Decimal value for the Outside Humidity plot colour
Graph3D=0	3D or normal graph selection as selected in the Display Configuration Graphs block 0 = normal graph selected 1 = 3D graph selected
PlotLatestGust=0	Plot Latest Gust selection as selected in the Display Configuration Graphs block 0 = Disabled 1 = Enabled
OriginIsSouth=0	Wind Direction Graph Y Axis origin 0 = North as Origin (default) 1 = South as Origin
ShowFreezingLine=0	Draw a horizontal line on the temperature graph at 0°C/32°F
AppTempColour=8388736	Decimal value for the Apparent Temperature plot colour
TempVisible=1	??? 0 = Disabled 1 = Enabled
HIVisible=0	??? 0 = Disabled 1 = Enabled
DPVisible=1	Plot the dewpoint values on the temperature graph 0 = Disabled 1 = Enabled
WCVisible=1	Plot the wind chill values on the temperature graph 0 = Disabled 1 = Enabled
AppTempVisible=1	Plot the apparent temperature values on the temperature graph 0 = Disabled 1 = Enabled
InHumVisible=1	Plot the indoor humidity values on the humidity graph 0 = Disabled 1 = Enabled
OutHumVisible=1	Plot the outdoor humidity values on the humidity graph 0 = Disabled 1 = Enabled
ChartMaxDays=7	How many days of data to plot on the graphs (default=7)
GraphGradientEnabled=0	Use gradient shading on the graph background 0 = Disabled 1 = Enabled
GradientStart=12632256
GradientMiddle=16777215
GradientEnd=8421504
SAGintempcolour=32768
SAGouttempcolour=255
SAGpressurecolour=16711680
SAGraintotalcolour=8388608
SAGrainratecolour=16776960
SAGgustcolour=16711935
SAGpeakgustcolour=65280
SAGspeedcolour=8388736
SAGinhumcolour=32896
SAGouthumcolour=8388608
SAGheatindexcolour=128
SAGwindchillcolour=8421504
SAGwinddircolour=0
SAGdewpointcolour=8421376
SAGsolarradcolour=65535
SAGmaxsolarradcolour=16711935
SAGapptempcolour=0
SAGuvindexcolour=65280
SAGintempaxis=L
SAGouttempaxis=L
SAGpressureaxis=L
SAGraintotalaxis=L
SAGrainrateaxis=L
SAGgustaxis=L
SAGpeakgustaxis=L
SAGspeedaxis=L
SAGinhumaxis=L
SAGouthumaxis=L
SAGheatindexaxis=L
SAGwindchillaxis=L
SAGwinddiraxis=L
SAGdewpointaxis=L
SAGsolarradaxis=L
SAGmaxsolarradaxis=L
SAGapptempaxis=L
SAGuvindexaxis=L
SAG3D=0
SAGgradientback=0
SAGleftgrid=1
SAGrightgrid=1

Section: Alarms

INI Line Entry	Function
[Alarms]	Section Name - the following parameters relate to your alarm settings
alarmlowtemp=0	Select in Edit Alarms Screen 0 = Disable low temperature alarm (default) 1 = Enable Low temperature alarm
LowTempAlarmSet=0	Setting for low temperature alarm point (degrees)
LowTempAlarmSound=0	Alarm Action 0 = Disable, (default) no sound on alarm 1 = Enable sound on alarm
LowTempAlarmSoundFile=C:\Cumulus\alert.wav	Path and file name of sound file for Low Temperature alarm
alarmhightemp=0	Select in Edit Alarms Screen 0 = Disable high temperature alarm (default) 1 = Enable High temperature alarm
HighTempAlarmSet=0	Degrees above which alarm will occur.
HighTempAlarmSound=0	Alarm Action 0 = Disable, (default) no sound on alarm 1 = Enable sound on alarm
HighTempAlarmSoundFile=C:\Cumulus\alert.wav	Path and file name of sound file for High Temperature alarm
alarmlowpress=0	Select in Edit Alarms Screen
LowPressAlarmSet=0	Pressure below which you wish Low Pressure alarm to occur
LowPressAlarmSound=0	Alarm Action 0 = Disable, (default) no sound on alarm 1 = Enable sound on alarm
LowPressAlarmSoundFile=C:\Cumulus\alert.wav	Path and file name for sound file to play for Low Pressure Alarm
alarmhighpress=0	Select in Edit Alarms Screen 0 = Disable low High Pressure alarm (default) 1 = Enable High Pressure alarm
HighPressAlarmSet=0	Pressure above which you wish High Pressure alarm to occur
HighPressAlarmSound=0	Alarm Action 0 = Disable, (default) no sound on alarm 1 = Enable sound on alarm
HighPressAlarmSoundFile=C:\Cumulus\alert.wav	Path and file name for the sound file used for the High Pressure Alarm
alarmhighraintoday=0	Select in Edit Alarms Screen 0 = Disable High Rain today alarm (default) 1 = Enable High Rain today alarm
HighRainTodayAlarmSet=0	Rain level above which alarm to occur
HighRainTodayAlarmSound=0	Alarm Action 0 = Disable, (default) no sound on alarm 1 = Enable sound on alarm
HighRainTodayAlarmSoundFile=C:\Cumulus\alert.wav	Path and file name for the sound file used for the High Rain Today Alarm
alarmhighrainrate=0	Select in Edit Alarms Screen 0 = Disable High Rain Rate alarm (default) 1 = Enable High Rain Rate alarm
HighRainRateAlarmSet=0	Rain rate above which you wish alarm to occur
HighRainRateAlarmSound=0	Alarm Action 0 = Disable, (default) no sound on alarm 1 = Enable sound on alarm
HighRainRateAlarmSoundFile=C:\Cumulus\alert.wav	Path and file name for the sound file used for the High Rain Rate Alarm
alarmhighgust=0	Select in Edit Alarms Screen 0 = Disable High Gust alarm (default) 1 = Enable High Gust alarm
HighGustAlarmSet=0	Gust speed above which you wish alarm to occur
HighGustAlarmSound=0	Alarm Action 0 = Disable, (default) no sound on alarm 1 = Enable sound on alarm
HighGustAlarmSoundFile=C:\Cumulus\alert.wav	Path and file name for the sound file used for the High Gust Alarm
alarmhighwind=0	Select in Edit Alarms Screen 0 = Disable High Average Wind alarm (default) 1 = Enable High Average Wind alarm
HighWindAlarmSet=0	Average Wind speed above which alarm to occur
HighWindAlarmSound=0	Alarm Action 0 = Disable, (default) no sound on alarm 1 = Enable sound on alarm
HighWindAlarmSoundFile=C:\Cumulus\alert.wav	Path and file name for the sound file used for the High Wind Alarm
SensorAlarmSet=0	Select in Edit Alarms Screen 0 = Disable sensor contact lost alarm (default) 1 = Enable sensor contact lost alarm
SensorAlarmSound=0	Alarm Action 0 = Disable, (default) no sound on alarm 1 = Enable sound on alarm
SensorAlarmSoundFile=C:\Program Files\Cumulus\alert.wav	Path and file name for the sound file used for the Sensor Contact lost Alarm
alarmtempchange=0	Select in Edit Alarms Screen 0 = Disable Temperature Change alarm (default) 1 = Enable Temperature Change alarm
TempChangeAlarmSet=0	Temperature change value to trigger the alarm
TempChangeAlarmSound=0	Alarm Action 0 = Disable, (default) no sound on alarm 1 = Enable sound on alarm
TempChangeAlarmSoundFile=C:\Program Files\Cumulus\alert.wav	Path and file name for the sound file used for the Temperature Change Alarm
alarmpresschange=0	Select in Edit Alarms Screen 0 = Disable Pressure Change alarm (default) 1 = Enable Pressure Change alarm
PressChangeAlarmSet=0	Pressure change value to trigger the alarm
PressChangeAlarmSound=0	Alarm Action 0 = Disable, (default) no sound on alarm 1 = Enable sound on alarm
PressChangeAlarmSoundFile=C:\Program Files\Cumulus\alert.wav	Path and file name for the sound file used for the Pressure Change Alarm

Section: Offsets

INI Line Entry	Function
[Offsets]	Section Name - the following parameters are the correction factors for your specific sensors
PressOffset=0	Value by which Measured Pressure to be corrected (Add/Subtract)
TempOffset=0	Value by which Measured Outdoor Temperature to be corrected (Add/Subtract)
HumOffset=0	Value by which Measured Humidity to be corrected (Add/Subtract)
WindDirOffset=0	Value by which Measured Wind Direction to be corrected (Add/Subtract)
InTempOffset=0	Value by which Measured Indoor Temperature to be corrected (Add/Subtract)
WindSpeedMult=1	Multiplier by which measured Average Wind Speed to be corrected. Officially wind speed is measured with sensors at 10m above ground level. If your sensor is not at 10m AGL then a correction multiplier should be applied using the following formula V10/Vh = 1/(0.233 + 0.656*log10(h+4.75)) where "h" is your sensor height in meters. e.g. if your anemometer is 5m off the ground, V10/Vh comes out at 1.134
WindGustMult=1	Multiplier by which measured Wind Gust Speed to be corrected.
TempMult=1	Multiplier by which measured Temperature to be corrected.
HumMult=1	Multiplier by which measured Humidity to be corrected.
RainMult=1	Multiplier by which measured Rainfall to be corrected.
UVOffset=0	Value by which measured UV to be corrected (add/subtract).
UVMult=1	Multiplier by which measured UV to be corrected

Section: xAP

INI Line Entry	Function
[xAP]	Section Name - the following parameters are used if you have enabled xAP in the Station Configuration xAP Settings block
Enabled=0	When set, Cumulus will periodically send out xAP weather reports. See http://www.xapautomation.org/ for more details 0 = Disabled (default) 1 = Enabled
UID=4375	Sets the UID for xAP messages. You should only need to change this if you have more than one instance of Cumulus running on a network.
Port=3639	IP port your computer uses to send data to xAP

Section: NOAA

INI Line Entry	Function
[NOAA]	Section Name - the following parameters are set from the NOAA Setup dialog in Cumulus
Name=	Your NOAA Station name
City=	NOAA location city
State=	NOAA location state/county/province
12hourformat=0	Use 12 or 24 hour time format in the reports 0 = 24 hour format (default) 1 = 12 hour format
HeatingThreshold=	The temperature which is to be used to calculate heating degree days
CoolingThreshold=	The temperature which is to be used to calculate cooling degree days
MaxTempComp1=27	The value used in the reports for the counts of days with max temperatures above the specified temperature.
MaxTempComp2=27	The value used in the reports for the counts of days with max temperatures below the specified temperature.
MinTempComp1=0	The value used in the reports for the counts of days with min temperatures below the specified temperature.
MinTempComp2=-18	The value used in the reports for the counts of days with min temperatures below the specified temperature.
RainComp1=0.2	The value used in the reports for the counts of days with rain totals greater than (or equal to) the specified amount.
RainComp2=2	The value used in the reports for the counts of days with rain totals greater than (or equal to) the specified amount.
RainComp3=20	The value used in the reports for the counts of days with rain totals greater than (or equal to) the specified amount.
AutoSave=0	If set, when Cumulus does the end of day reset, it will auto create NOAA-style reports for the month and year corresponding to the day which has just ended.
NOAATempNorm[Jan-Dec]=	Long term temperature averages for each month, used for 'departure from the norm' calculations.
NOAARainNorm[Jan-Dec]=	Long term rainfall averages for each month, used for 'departure from the norm' calculations.
AutoFTP=0	If set, when Cumulus does the first FTP upload after the daily reset, it will also upload the latest auto-created monthly and yearly NOAA-style reports. Note that you must already have regular (non-realtime) FTP configured.
MonthFileFormat="NOAAMO"mmyy".txt"	Defines the format of the filename used for the monthly reports, using date formatting characters (see Webtags#Time.2FDate_.27format.27_Parameter). Note that any characters which are not date formatting characters should be in double quotes.
YearFileFormat="NOAAYR"yyyy".txt"	Defines the format of the filename used for the yearly reports, using date formatting characters (see Webtags#Time.2FDate_.27format.27_Parameter). Note that any characters which are not date formatting characters should be in double quotes.
FTPDirectory=	The FTP directory into which Cumulus will attempt to upload the latest NOAA-style reports. You must give the full path from the point of login, and do not supply a trailing 'slash'. Note that the directory must actually exist on the server.

Section: Solar

INI Line Entry	Function
[Solar]	Section Name - the following parameters are set from the Solar Setup dialog in Cumulus
SunThreshold=75	If you have a solar sensor: Cumulus tries to determine whether the sun is shining by determining whether the current solar radiation value is above a certain percentage of the current theoretical maximum. The value you supply here is used as that percentage. The default value is 75%.
RStransfactor=0.8	Cumulus uses the Ryan-Stolzenbach formula to determine the current theoretical maximum solar radiation at your location at the current moment in time. This formula has a factor to allow for the transmission of the radiation through the atmosphere; the default is 0.8.
SolarMinimum=0	This setting allows you to specify a minimum solar radiation value which needs to be reached before it can be considered to be sunny. Note that this setting does not replace the calculation using the current theoretical maximum, it specifies an additional condition which has to be met. This setting therefore allows you to cater for the periods at the beginning and end of the day when the theoretical maximum is very low.
LuxToWM2=0.0079	For Fine Offset stations. These supply 'Lux' values rather than 'W/m2' values that Davis stations supply. Cumulus attempts to convert from Lux to W/m2 using the supplied multiplication factor.
UseBlakeLarsen=0	Set this to 1 if you have a Blake-Larsen Sun Recorder, and you want Cumulus to get today's sunshine hours from it. You need to configure the Blake-Larsen software to put the SRsunshine.dat file into the Cumulus data folder so that Cumulus can read it.

Section: MainForm

INI Line Entry	Function
[MainForm]	Section name - the following parameters relate to the Cumulus screen position.
Left=100	The last saved Cumulus main screen position, in pixels from the left-hand edge of the screen.
Top=50	The last saved Cumulus main screen position, in pixels from the top edge of the screen