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Latest Cumulus MX V3 release 3.28.6 (build 3283) - 21 March 2024
Cumulus MX V4 beta test release 4.0.0 (build 4019) - 03 April 2024
Legacy Cumulus 1 release 1.9.4 (build 1099) - 28 November 2014
(a patch is available for 1.9.4 build 1099 that extends the date range of drop-down menus to 2030)
Download the Software (Cumulus MX / Cumulus 1 and other related items) from the Wiki
Latest Cumulus MX V3 release 3.28.6 (build 3283) - 21 March 2024
Cumulus MX V4 beta test release 4.0.0 (build 4019) - 03 April 2024
Legacy Cumulus 1 release 1.9.4 (build 1099) - 28 November 2014
(a patch is available for 1.9.4 build 1099 that extends the date range of drop-down menus to 2030)
Download the Software (Cumulus MX / Cumulus 1 and other related items) from the Wiki
Low Dew Point / Humidity since latest release
Moderator: mcrossley
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- Posts: 29
- Joined: Mon 06 Jan 2020 4:49 pm
- Weather Station: Davis Vantage Pro 2
- Operating System: Windows 10
Low Dew Point / Humidity since latest release
It appears that since I installed the latest release (3183) that the humidity / dew point falls markedly during the evening and overnight e.g. at the moment (22:24 BST, 18 May it us reading 48% humidity and TD 1 C when it should be up around 11 C. Strangely come the morning it quickly rises back to where it should be. Any thoughts anyone?
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- Posts: 220
- Joined: Tue 07 Feb 2012 9:42 am
- Weather Station: Davis Vantage PRO2
- Operating System: Windows 11 Pro 64 Bit
- Location: Camberley
Re: Low Dew Point / Humidity since latest release
I had similar reading a while back but NOT after a CumulusMX update. The cure was to clean the weather Radiation Shield and the sensor itself with a light bruch. The Radiation Shield had a large amount of spider web and dust.
- mcrossley
- Posts: 12756
- Joined: Thu 07 Jan 2010 9:44 pm
- Weather Station: Davis VP2/WLL
- Operating System: Bullseye Lite rPi
- Location: Wilmslow, Cheshire, UK
- Contact:
Re: Low Dew Point / Humidity since latest release
The humidity readings just come from your station, or are you saying the values in CMX are different from your station console?
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- Posts: 29
- Joined: Mon 06 Jan 2020 4:49 pm
- Weather Station: Davis Vantage Pro 2
- Operating System: Windows 10
Re: Low Dew Point / Humidity since latest release
No the readings are the same. It just seems bizarre that during the day the TD / humidity seems Ok but then it very quickly falls in the late afternoon / evening e.g. this evening TD fell from 10.7C at 17:11 L to 2.5 C at 1735L.
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- Posts: 29
- Joined: Mon 06 Jan 2020 4:49 pm
- Weather Station: Davis Vantage Pro 2
- Operating System: Windows 10
Re: Low Dew Point / Humidity since latest release
It appears that the humidity sensor was u/s. I have replaced it and all now seems ok. It was confusing as it seemed to fail at the same time that I uploaded the latest Cumulus software