Daily summaries created by versions earlier than v3.7.0 did not weight the sums with the length archive interval. See issue #61 <https://github.com/weewx/weewx/issues/61>. Summaries created by v3.7.0 or later, do weight the sums. You can tell the difference between the two types of summaries by examining some metadata.
*echo "select value from archive_day__metadata where name='Version'" | sqlite3 weewx.sdb* The intention is that the daily summaries are either one or the other: the sums are either not weighted (version=1), or they are weighted (version=2). I don't know why your database would be a little of each. It should not be. This can all be fixed by dropping <http://www.weewx.com/docs/utilities.htm#Action_--drop-daily>, then rebuilding <http://www.weewx.com/docs/utilities.htm#Action_--rebuild-daily>, the daily summaries. The utility wee_database can do this. -tk On Wed, Aug 19, 2020 at 5:57 PM David Geiger <[email protected]> wrote: > I have been a long time user of weewx, great software! > > I recently updated from 3.9.2 to 4.1.1. After the update, I noticed that > my average yearly outTemp was different. I took a look in the database and > noticed that after the upgrade, my wsum and sumtime are a factor of 300 > times greater than before the upgrade. Before, sumtime = 288 each day, > after the upgrade it = 86400 each day. I noticed it in the > archive_day_outTemp table. The average for the day is still correct, but > when you run for a span that includes 3.9.2 and 4.1.1, the 4.1.1 far out > weighs the 3.9.2. > > I have my archive interval set to 300. It was not changed between 3.9.2 > and 4.1.1 > > -- > You received this message because you are subscribed to the Google Groups > "weewx-user" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/weewx-user/b9f624ae-fcb7-40ab-bada-263a3d665300n%40googlegroups.com > <https://groups.google.com/d/msgid/weewx-user/b9f624ae-fcb7-40ab-bada-263a3d665300n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/CAPq0zEDBqsoEje_7cbVy81J8W2g6JEByLi85ye-kZiVQpBRiiw%40mail.gmail.com.
