Changes from 1.9.0:

• Added ‘apparent temperature’ and web tag <#apptemp>
• Added humidity high and low, and corresponding web tags
• Wunderground uploads ‘catch up’ from logger data
• Allow chart line width to be configured
• Allow individual temperature chart lines to be shown/hidden
• Optional gradient background for charts
• Fix evapotranspiration recording (Davis)
• Calculate hours of sunshine (Davis)
• Added high rain rate to “this month/year/period” display
• Added rain to xAP reports
• Option to round wind speeds to nearest integer
• Option to disconnect Davis IP connections once a minute
• Select-A-Graph colours saved over a restart
• Option to show/hide humidity chart lines
• Don’t initialise USB for non-USB stations
• Wind rose transparency is configurable
• New wind gauge
• New spike removal facility
• Moved realtime FTP into separate thread
• Compass colours now configurable
• New all time record for apparent temp and heat index, plus webtags
• New all time record display and editor
• Add sunshine hours to this month/year/period displays
• Start of rainfall season can be specified
• New ‘highs and lows’ displays, and corresponding web tags
• Support of WH3080 and WH3081 stations
• ‘Format’ parameters for date and time web tags
• Run external commands at ftp time
• Maintain highs and lows for dew point
• Moon percent web tags
• Solar Radiation, UV, and Apparent temp added to Select-A-Graph
• New editors for highs and lows with re-generation from log files
• web tags for all-time records indicators
• ‘Lowest max’ and ‘Highest min’ temps now include times
• Many other enhancements and fixes

Changes from 1.8.9:

• new webtags – timehhmmss and currentwdir
• add cloudbase and average wind direction (compass) to realtime.txt
• changed to ‘new’ Twitter authentication method (OAuth)
• added latitude and longitude to tweets
• fix date problem with monthly rain record when using 9am rollover
• APRS and wxnow.txt: Represent 0% RH by 1% (zero means 100)
• bug fix: don’t use entries more than once when reading FO archive data
• use Cumulus calculated wind speed for wind chill calculation, if that option is selected
• send wind to Wunderground with 1 dp for non-Davis stations
• new web tag – <#newrecord> – 1 if ‘new record’ light is flashing, 0 if not
• Write UV and Solar Rad to monthly log files
• Make sure to send decimal degrees to Wunderground when temp goes above 100F
• Don’t log WU and PWS Weather passwords to debug log
• Option to have forecast updated only once per hour
• [ER 12] Added <#LastRainTipISO> web tag – date/time of last rain gauge tip
• Use an improved Heat Index formula which is valid below humidity of 40%
• Log failed dayfile.txt entry to diags log and flash error light
• Correct Degrees to DMS calculation for some cases
• Fix Twitter timestamp bug which caused ’401′ failures
• Fix problem in southern hemisphere in previous Twitter fix

See the downloads section for the link, and the Cumulus product page for a list of changes.

Changes from 1.8.7:

• Added comparison of day length with tomorrow (and web tag)
• Handle (by ignoring) errors from creation of moon bitmap
• Added <#nextwindindex> web tag (see help)
• Improved layout slightly on smaller displays
• Added option to periodically disconnect realtime ftp
• Fix heat index for temp under 80F or humidity under 40%
• Fix spurious extra entry on end of <#wdirdata> and <#wspddata>
• Add error code to ftp connect error message
• Added ‘This Period’ screen (see ‘View’ menu)
• Fixed crash caused by default value when pressure calibration box is cleared
• Added ‘save as PNG’ to Select-A-Graph
• Added Heat Index to data log, outside temp graph, and Select-A-Graph
• Added wind chill and dew point to Select-A-Graph
• Added ability to display multiple parameters on Select-A-Graph
• Option to display Humidex instead of Heat Index on main screen
• ftp upload is now in a separate thread to improve UI performance
• Changed Wunderground upload to send ‘latest’ wind speed not average
• Added tray icon ‘tooltip’ with wind speed and temperature
• Changed code for closing data log, and added warning if not written
• Fix bug where first rapid fire Wunderground update could contain zeroes
• Fix bug where having ‘this period’ window open causes failure to write data log
• Ignore humidity of zero on Fine Offset and LaCrosse stations
• Fix forecasts for high pressure extremes
• Allow WMR928 etc extra sensor to act as main temp sensor (ini file setting)
• Fix very high wind speeds on Fine Offset
• Fix filtering of zero humidity
• Fix occasional display of dashes for sunset in some timezones
• Correctly log http response codes in debug log
• Changed scale label intervals on wind speed gauge
• Correct 1-minute average temp being deg C when using data from Fine Offset logger
• Fix pressure trend used in forecast, if units are inHg
• Added ‘FCPressureThreshold’ ini-file entry to control forecast generation
• Increased size of input boxes on all-time record editor
• Fix problem where inside temp graph colour setting was lost over a restart
• Fix problem where wind direction graph colour setting was lost over a restart
• Allow average wind direction graph colour to be changed
• Make sure dew point is still calculated when humidity 100%
• As above, but for ‘live’ data as well as logger data!
• Fix switching off of all-time records LEDs
• added ability to configure/translate forecast strings via strings.ini
• Fix to allow WMR928 users to use Cumulus forecast
• Added more strings to strings.ini
• Added two new realtime.txt items and web tags – forecastnumber and isdaylight
• Truncate custom tweets at 140 characters
• Allow thickness of chart legend symbols to be configured
• Added ‘max wind speed’ option for La Crosse (via cumulus.ini setting)
• Select-A-Graph now has gust as well as peak gust
• Added temp/pressure trends to strings.ini
• Correct colours of web wind direction graph
• Stop tray icon appearing when ‘minimise to tray’ not selected
• Fix ‘waxing gibbous’ strings.ini setting name
• Average temp calculation using logger data now uses calibrated value
• Added new web tags to correct trend arrows on javascript gauges
• Fix average wind and gale days on ‘This period’ display
• Round time to previous log interval when asking for VP logger data, to avoid Davis bug
• Make sure first wind and temp readings have been made before calculating wind chill

It can be downloaded from the downloads page.

Changes from 1.8.6:

• Increase number of recent saved wind samples to ensure 10 minutes worth
• Attempt to fix incorrect daylight hours count where daylight crosses midnight
• Apply multiplier to yesterday’s rain once rather than twice!
• Fixed min temp and pressure being zero when Cumulus is first run

Changes from 1.8.5:

– Fixed saving of non-default ftp port
- Added option to use file for twitter update
- Added web tags for WMR928 extra sensors
– Option to keep to clock time year-round for 0900 rollover
– Option to prevent multiple instances running
– Captions for WMR928 extra channels are configurable
– Fixed problem where Fine Offset day rollover not done when bad data detected
– Corrected ‘rain since midnight’ for 0900 rollovers (for Wunderground etc)
– Option to copy files locally instead of ftp
– Don’t write today.ini unless station contacted
– Option to have South as origin of wind direction charts
– Fix average temp calculation when using logger data
– Fix problem with daily extremes when first logger entry causes day rollover
– Attempt to avoid reading WS23xx data when station is talking to remote sensors
– Added ‘Print…’ menu to Select-a-graph window
– Fixed high rain rate at startup (Fine offset)
– Added option to copy images to a specified folder
– Send altimeter pressure to CWOP instead of MSLP
– Added <#dawn>, <#dusk> and <#daylightlength> web tags
– Added dawn/dusk display to main screen
– Option to display cloud base on main screen
- Option to configure cloud base units independently of altitude units
– Set colour of moon phase text to black
– Option to restart Cumulus if Fine Offset station uplugged
– Range of wind gauge can now be specified
– Snow unit text in diary can now be specified