Most likely it's some bad data. Let's check the database directly.
First find the database. If you did a package install, it's most likely at
/var/lib/weewx/weewx.sdb. If you did a setup.py install, it's at
/home/weewx/archive/weewx.sdb. Let's assume the former.
Then, run two queries:
*sqlite /var/lib/weewx/weewx.sdb*
sqlite> *select avg(outTemp) from archive where strftime("%Y-%m",
dateTime,'unixepoch','localtime')=='2020-11';*
sqlite> *select sum(sum)/sum(count) from archive_day_outTemp where
strftime("%Y-%m",dateTime,'unixepoch','localtime')=='2020-11';*
The first method calculates the average temperature for Nov 2020 by using
the main archive table. The second by using the daily summaries. The two
numbers should be very close. See what you get and we'll take it from there.
-tk
On Thu, Nov 19, 2020 at 4:43 AM Berny Cl <[email protected]> wrote:
> Hi everybody,
> since the last update to version 4.20, i have noticed an incorrect value
> for the monthly average temperature at the history table and also in the
> monthly NOAA table.
> I use the niculskin and my station is a FineOffset (WS 1080).
>
> See at: http://haus-volmering.de/history.html
> (Durchschnittstemperatur = Average Temperature for Nov is obviously
> incorrect)
>
> How can I fix that?
>
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