New extension downloads climatological data

[Tom Keffer]

This extension downloads historical data from NOAA's ACIS repository and makes them available as a search list extension. It enables tags that can show things such as the high-low for the date. It includes a widget for the Seasons skin that looks like this:

Thousands of ACIS stations are available. Unfortunately, the extension is US only. If someone can point me in the direction of a similar European repository, I'd be delighted to support it as well.

I've tested it a bit, but I'd have to consider it "beta", at least for a while.

Find it here: https://github.com/tkeffer/weewx-climate

-tk

[Ian Millard]

Tom,

The MetOffice holds similar stats for The UK.

You can find them here, station by station: -

Ian

On 3 Feb 2026, at 22:36, Tom Keffer <tke...@gmail.com> wrote:

This extension downloads historical data from NOAA's ACIS repository and makes them available as a search list extension. It enables tags that can show things such as the high-low for the date. It includes a widget for the Seasons skin that looks like this:

<image.png>

Thousands of ACIS stations are available. Unfortunately, the extension is US only. If someone can point me in the direction of a similar European repository, I'd be delighted to support it as well.

I've tested it a bit, but I'd have to consider it "beta", at least for a while.

Find it here: https://github.com/tkeffer/weewx-climate

-tk

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[Tom Keffer]

Thanks for the tip, Ian.

I'm not seeing a way to download JSON data. There is a text file, which I could scrape, but I was hoping for something more RESTful.

Am I missing something?

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[Vince Skahan]

Cool. The map search finds my CoCoRAHS site. How about that.

 

https://www.ncei.noaa.gov/access/services/data/v1?dataset=daily-summaries&startDate=2026-01-01&endDate=2026-01-31&stations=US1WAKG0248&format=pdf

I’ll have to point the CoCoRAHS guys at Colorado State at this one.

[Keith Terry]

I added this to my page but I am getting the attached instead of values. When I enable the climate skin and browsed to it I can see values . Any idea what could be causing this?

[Tom Keffer]

Did you remember to add user.climate.clsle.ClimateSLE to the search list? See step #2 in the README.

If you did that, then set debug=1, restart weewxd, let it run for a reporting cycle, then post the log.

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[Keith Terry]

See the attached log.

[Tom Keffer]

I'm not seeing the climate extension in the list of search list extensions. Did you do step #2 in the README? If so, post your copy of skin.conf for the Seasons skin.

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[Keith Terry]

I did do step 2. See the attached skin.conf

[Tom Keffer]

I was able to use your skin.conf without any problems.

What is not making sense is that the log is showing the forecast SLE 'user.forecast.ForecastVariables', being loaded, but not 'user.climate.clsle.ClimateSLE'. However, skin.conf shows just the opposite: it has the climate SLE listed, but not the forecast SLE. 

The log shows that it is the configuration file at /etc/weewx/skins/Seasons/skin.conf that is being read. Double check it on your system. See what it has for option search_list_extensions.

Unless I'm missing something obvious --- always possible --- the reports must be using a different skin.conf than the one you edited and sent to me.

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[Keith Terry]

The forecast extension seems to be the source of the issue. I commented out the forecast lines in weewx.conf under the Seasons Report section:

    [[SeasonsReport]]
       # The SeasonsReport uses the 'Seasons' skin, which contains the
       # images, templates and plots for the report.
       skin = Seasons
       enable = true

#        [[[CheetahGenerator]]]
#            search_list_extensions = user.forecast.ForecastVariables
#        [[[CopyGenerator]]]
#            copy_once = seasons.css, seasons.js, favicon.ico, font/*.woff, font/*.woff2, forecast_compact.css, icons/*

After restarting Weewx the On This Day section rendered correctly but of course the Forecast section says:

forecast_iconic: forecast search list extension is not installed

Is there any way to put the forecast settings in the skin.conf rather than weewx.conf? I tried adding it under climate in skin.conf but received a duplicate key error.

[Tom Keffer]

It appears that the entry for the forecast extension was overriding the value for search_list_extensions in weewx.conf, which is a perfectly reasonable thing to do. Why not include both in weewx.conf? It would look something like this:

[[SeasonsReport]]
       # The SeasonsReport uses the 'Seasons' skin, which contains the
       # images, templates and plots for the report.
       skin = Seasons
       enable = true

        [[[CheetahGenerator]]]
            search_list_extensions = user.forecast.ForecastVariables, user.climate.clsle.ClimateSLE

        [[[CopyGenerator]]]

            copy_once = seasons.css, seasons.js, favicon.ico, font/*.woff, font/*.woff2, forecast_compact.css, icons/*

Glad you solved that mystery!

-tk

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[Keith Terry]

Worked like a charm. Thank you very much for your help.