Seasons Aggregations

[Karen K]

Actually I see a lot of seasons statistics, and I wonder how to do it in WeeWX. Is there a simple way to get seasons timespans besides using lots of #set statements?

There are 2 kinds of seasons: meteorological and astronomical. For the northern hemisphere that is:

        |  meteorological                |  astronomical

--------|--------------------------------|-------------------

spring  |  March, April, May             |  March equinox to June solstice

summer  |  June, July, August            |  June solstice to September equinox

autumn  |  September, October, November  |  September equinox to December solstice

winter  |  December, January, February   |  December solstice to March equinox

For the southern hemisphere exchange summer with winter and spring with autumn.

If there is no simple way, I could add it to the weewx-GTS extension, as there are already special timespans, so it would fit in.

[Tom Keffer]

The right place for it would be in the core codebase. I don't think it's a very hard addition. Anyone care to submit a PR?

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[Karen K]

I can do so. 

[John Smith]

March equinox to June solstice

I'm not sure why but in southern Australia, or at least the non-tropical parts, they based it from the 1st of the month.

Although our seasons rarely line up with those dates, and Melbourne, Victoria is famous for having 4 seasons in a day!

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[Karen K]

John Smith schrieb am Mittwoch, 3. Juni 2026 um 14:45:27 UTC+2:

March equinox to June solstice

I'm not sure why but in southern Australia, or at least the non-tropical parts, they based it from the 1st of the month.

I described 2 kinds of seasons counting: meteorological which starts at the 1st of month, and astronomical, which starts at the astronomical event. I will provide both. 

[Karen K]

Tom Keffer schrieb am Mittwoch, 3. Juni 2026 um 02:12:47 UTC+2:

The right place for it would be in the core codebase. I don't think it's a very hard addition. Anyone care to submit a PR?

There is a draft at roe-dl/weewx/seasons_tags. 

[Karen K]

Tom Keffer schrieb am Mittwoch, 3. Juni 2026 um 02:12:47 UTC+2:

The right place for it would be in the core codebase. I don't think it's a very hard addition. Anyone care to submit a PR?

PR #1095