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Different precipitation between station and cumulus 1.8.8

Posted: Wed 09 Dec 2009 7:18 pm
by katdoc
Hello

I've noticed some difference between the precipitation shown on the National Geographic 265NE panel and the latest cumulus 1.8.8.Is there something i do wrong or its just a bug?

Re: Different precipitation between station and cumulus 1.8.8

Posted: Thu 10 Dec 2009 8:05 am
by steve
Which rain figure are you comparing? Cumulus has lots of them - rate, daily, monthly, etc etc.

Re: Different precipitation between station and cumulus 1.8.8

Posted: Thu 10 Dec 2009 10:24 am
by katdoc
im sorry.Im comparing daily rain.the difference is about 3-4 mm

Re: Different precipitation between station and cumulus 1.8.8

Posted: Thu 10 Dec 2009 10:30 am
by Samuel
My WH1080 use last 24 hours but Cumulus use midnight to midnight and and that make it impossible to compare daily rain

Re: Different precipitation between station and cumulus 1.8.8

Posted: Thu 10 Dec 2009 10:49 am
by steve
Samuel wrote:My WH1080 use last 24 hours but Cumulus use midnight to midnight and and that make it impossible to compare daily rain
I hadn't noticed that. That may well account for the difference.

Cumulus calculates the daily rain by taking a snapshot of the station's 'total rain counter' at midnight, and then comparing the latest value with that during the day. You can see the figures that are used for the calculation by looking in the monthly log file. The midnight value is saved in today.ini as the Start= value.

Re: Different precipitation between station and cumulus 1.8.8

Posted: Thu 10 Dec 2009 11:20 am
by Samuel
Samuel wrote:My WH1080 use last 24 hours but Cumulus use midnight to midnight and and that make it impossible to compare daily rain
It is not a problem, but I meant that it is not possible to compare daily rain on the WH1080 panel or easywheather with daily rain in Cumulus,
because all values in my WH1080 and Easywheather is calulated for last 24 hours or last 60 minutes etc. but Cumulus use (in my case) midnight to midnight
and values is of course not possible to compare.
And thankyou Steve, Cumulus is fantastic, I have used Cumulus for about 14 months, and almost no problems at all !! :D