this post was submitted on 03 Sep 2025
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Data is Beautiful

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[–] naught101@lemmy.world 3 points 2 weeks ago (1 children)

Is the red line the average, and the green line the difference?

[–] Justas@sh.itjust.works 4 points 2 weeks ago (1 children)

Green line is the average temperature for that day this year.

Red line is the average temperature for that day for 30 years, 1991-2020.

In the chart, the red areas are days hotter than average and blue areas lower than average.

There is also daily precipitation as bar charts on the bottom. It's a shame those don't have daily averages for 30 years though.

[–] Aquila@sh.itjust.works 1 points 2 weeks ago (1 children)
[–] Justas@sh.itjust.works 1 points 2 weeks ago

I think it's the difference between the highest and lowest temperatures that day across the 30 year range.