Well, you can check what's in the database for the last hour.  Adjust the
path to the database as necessary.

*sqlite3 /var/lib/weewx/weewx.sdb*
sqlite> *select datetime(dateTime,'unixepoch','localtime'),pm2_5 from
archive where dateTime>=(select max(dateTime)-3600 from archive);*



On Sat, Apr 10, 2021 at 5:50 AM [email protected] <[email protected]>
wrote:

> Hi,
>
> I am trying to improve my station sking with a proper AQI
> computation/display. however when using $hour.pm2_5.has_data it is always
> false.
>
> Data is stored in the pm2_5 column of weewx archive database. Gauges show
> the current values, and history plot show prior data.
>
> Is there a setting I need to add somewhere so that hourly average can be
> computed on this column as well?
>
> Regards,
>
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