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Install Cumulus MX

The Cumulus MX weather program

Install with winget
winget install --id CumulusMX.CumulusMX
Upgrade
winget upgrade --id CumulusMX.CumulusMX
Uninstall
winget uninstall --id CumulusMX.CumulusMX

About Cumulus MX

The Cumulus MX weather program

What's new in 5.1.5

New - Adds translations for the lightning fields on the Extra Sensors page - A new web tag to provide the WBGT exposure level 1-5 <#WBGTlevel>, the tag takes an optional parameter cat=N (where N = 0 to 3) - invalid cat=N returns 0 - The "cat" parameter specifies which category scale to use for the exposure level (see below), it defaults to "cat=0" - Categories 1-3 correspond to the US National Weather Service - Category 0 is user defined. The user defined range must be specified in Celsius - Category 0 default values are based on ACGIH TLV action limits for an unacclimatized person ─────┬──────────┬──────────┬──────────┬──────────┬────────────┬────── Level│Cat 0 (°C)│Cat 1 (°F)│Cat 2 (°F)│Cat 3 (°F)│Threat Level│Flag ─────┼──────────┼──────────┼──────────┼──────────┼────────────┼────── 1 │< 25.0 │< 76.1 │< 79.8 │< 82.0 │Low │White ─────┼──────────┼──────────┼──────────┼──────────┼────────────┼────── 2 │25.0 │76.1 │79.8 │82.0 │Moderate │Green ─────┼──────────┼──────────┼──────────┼──────────┼────────────┼────── 3 │28.0 │81.0 │84.6 │87.0 │High │Yellow ─────┼──────────┼──────────┼──────────┼──────────┼────────────┼────── 4 │30.0 │84.2 │87.7 │90.0 │Very High │Red ─────┼──────────┼──────────┼──────────┼──────────┼────────────┼────── 5 │>= 32.5 │>= 86.2 │>= 89.8 │>= 92.0 │Extreme │Black ─────┴──────────┴──────────┴──────────┴──────────┴────────────┴────── - Adds 'Rain Since Midnight' to 'Today's Rain Editor' Changed - The daily Cumulus upgrade check now only issues a warning message when the alarm is triggered rather than every time the check is performed and a new version is fou...

Read release notes

Version history

Version Updated Notes
5.1.5 Unknown New - Adds translations for the lightning fields on the Extra Sensors page - A new web tag to provide the WBGT exposure level 1-5 <#WBGTlevel>, the tag takes an optional parameter cat=N (where N = 0 to 3) - invalid cat=N...
5.1.4 Unknown New - Add web tag for the Cumulus dashboard/web socket port - <#CumulusPort> - Adds a new station option for Cumulus calculates WBGT You can use this if say you have a BGT value from your extra sensors, but want to use t...
5.1.3 Unknown New - Adds a new web tag <#SensorRssi> that currently supports the Ecowitt HTTP API station. It lists the RSSI value for each sensor - if available - Like the <#EcowittReception> web tag it supports a format=xxx paramete...
5.1.1 Unknown New - Add Locale Strings for the dashboard Today/Yesterday & Records pages - The same strings are applied to many chart data series names Changed - Add Ecowitt HTTP API Station to <#EcowittReception> web tag Fixed - Spur...
5.1.0 Unknown New - High records added for BGT and WBGT values - Updated dashboard records displays - Updated records editors - Add to Locale Strings and Display Options - Data file editors amended - Day file now has four extra fields...
5.0.1 Unknown New - Adds support for supply external forecast text via a file forecast.txt in the root folder - Adds a new web tag <#IsDST> which indicates if the current date/time is in daylight saving time (=1) or not (=0) Changed -...
5.0.0 Unknown First release based on .NET 10 Extensive changes, please read the CHANGELOG.md
4.6.4 Unknown - Crash caused by EcowittMacAddress=null in Cumulus.ini - Add additional error handling for dates date/times with the min val 0001-01-01 - Enable Ecowitt SD card file content reading retries when zero length files are re...
4.6.3 Unknown New - Adds support for Third Party WOW-BE reboot uploads Changed - If you have more than one Ecowitt web camera, the web tags <#EcowittCameraUrl> and <#EcowittVideoUrl> now accept a parameter of mac=1A:2B:3C:4D:5E:6F (eg...
4.6.2 Unknown New - You can now clear alarms by clicking on them in the main dashboard screen Fixed - Fix Startup MySQL catch-up not working in v4.6.0 and v4.6.1 Package Updates - Microsoft.Win32.SystemEvents - NLog - NLog.Extensions....
4.6.1 Unknown Fixed - Davis cloud station not decoding current data
4.6.0 Unknown New - Adds support the Ecowitt WH45/46 CO₂ sensor values on the HTTP API - Adds support for the Ecowitt WN20 battery status monitoring - Adds RSSI value (if available) to the Ecowitt sensor list logging - A new Alarm for...
4.5.2 Unknown New - Editing rainfall values in the dayfile now automatically updates the yesterday, week, month, year totals without restarting Cumulus MX Changed - FTP watchdog now creates its temp file using the path specified in th...
4.5.1 Unknown New - Adds some additional detection of resuming from a computer suspension (the clock jumping forward by more than 10 minutes), and aborts the program ready for a restart and catch-up - This should only be activated on...
4.5.0 Unknown New - By popular demand, implements web tags: <#ExtraTemp[11-16]>, <#ExtraHum[11-16]>, <#ExtraDP[11-16]> Fixed - Davis Cloud Station (VP2/Vue) decoding of soil moisture/temp and leaf wetness - Fix Ecowitt HTTP API statio...
4.4.5 Unknown New - Adds current values for Ecowitt CO2 sensor pm1 and pm4, and 24-hour averages for pm 2.5, 10, 1, 4 to Ecowitt HTTP API Changed - Removed Cumulus snow accumulation filtering/averaging from laser depth as this is now...
4.4.4 Unknown New - Locale Strings has a new Web Tags format for general dates - Added PM2.5 24 hour value handling to Ecowitt local HTTP API Fixed - NaN error when Wunderground rapid fire is enabled and an upload fails - Web tag <#re...