It's time for our annual "Warm days in January aren't that unusual" thread. #yegwx
1/
...on average in *January* in Edmonton we get about 12 days with Highs above freezing, and that includes 4 days which hit 5°C.
Since 2000 the only Januarys which didn't hit 5°C at least once were 2020, 2008 & 2001.
https://public.tableau.com/shared/KRWF3TRR4?:display_count=y&:origin=viz_share_link
...and even back in the 1880s and especially the 1890s the average was about 9 Highs above freezing in January.
(along with an occasional *High* of -40°C)
So you don't need to feel too guilty about enjoying the warm January days.
https://public.tableau.com/shared/JK54HH8SP?:display_count=y&:origin=viz_share_link
...BUT, January is our most-warmed both *by far*.
Since 2000 it has averaged 4.4°C warmer than the 20th century average.
January 2020 was relatively cool, and it was still 1.1°C warmer than the 20th century average.
https://public.tableau.com/shared/FKJSBXXW6?:display_count=y&:origin=viz_share_link
...our recent January temperatures are unrecognizable compared to a century ago, or even compared to the 1970s.
January's average High has increased by 8°C from -12°C to -4°C.
The average Low has increased by 10°C from -23°C to -13°C. #yegwx
https://public.tableau.com/shared/Y75P283GC?:display_count=y&:origin=viz_share_link
...on a yearly basis the number of "warm" 0°C and 5°C days which we get each January is roughly as high as it's ever been, although there has been lots of variation.
https://public.tableau.com/shared/RZWXWC6DJ?:display_count=y&:origin=viz_share_link
...the cold side of things has changed a lot though, with our January Lows of -20°C and -25°C at about half of what they used to be.
https://public.tableau.com/shared/6CRKR2QCB?:display_count=y&:origin=viz_share_link
...January Lows of -30°C and -35°C have mostly disappeared (especially since the 1970s) although January 2020 was a notable exception to that.
https://public.tableau.com/shared/7QZD4RNW6?:display_count=y&:origin=viz_share_link
oops, back to the 2nd slide it's actually "Since 2000 the only Januarys which didn't hit 5°C at least once were 2020, 2008 & *2000*" (not 2001)
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