There is an XType service Delta that can do this. For example, it is used
to calculate rain from a running total:
[StdWXCalculate]
[[Calculations]]
...
rain = prefer_hardware
...
[[Delta]]
[[[rain]]]
input = totalRain
On Mon, Nov 24, 2025 at 5:01 PM [email protected] <[email protected]>
wrote:
> I am pretty sure that WeeWX can calculate the delta of an observation from
> a running total (for example a driver/service that reports a cumulative
> value for rain). I have searched the WeeWX docs and wiki, but I can't find
> out how to do it. Could someone point me to the documentation or wiki page?
> Thanks! rich
>
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