🧵 Meteorologically-speaking, why is March weather so unpredictable in the Northern Hemisphere?
Anonymous at Wed, 26 Mar 2025 10:02:11 UTC No. 16628884
Where I live, there's an equal chance it's either gonna be 40s or 70s degrees Farenheit at its highest, and a snow day isn't unexpected either. We experienced both a heat wave and a cold wave two years apart during March. November has a similar average temperature, yet it feels more consistent. What gives?
Anonymous at Wed, 26 Mar 2025 10:04:30 UTC No. 16628885
>>16628884
i also forgot to mention about severe weather
i mentioned snow and heat waves, but there's also thunderstorms and tornadoes
Anonymous at Wed, 26 Mar 2025 12:22:42 UTC No. 16628953
>>16628884
Sunlight reaches its minimum on the winter solstice in late December then begins increasing, this imparts more warmth as time goes on, by March days are getting long but wind will decide if you get a cold or warm air mass locally.
Predicting the start of the growing season has been a thing for a very long time and its uncertainty has led to a number of traditions like groundhog day came from older European traditions of guessing/predicting the end of winter. So it's not really new, just a time of fluctuating weather. Plant early and you may get lucky...
Anonymous at Wed, 26 Mar 2025 14:40:43 UTC No. 16629021
>>16628884
the boundary between cooler arctic air and warmer air to the south shifts around north and south more as the hemisphere 'tilts' back towards the sun (shitty description i know).
im in maritime canada and one day it can be +10c, warm and sunny, the next a cold front sweeps through and dumps a foot of snow. thankfully the winter was very settled and consistent, unlike some, where it does that all winter only the temp range is more like -20c then bang upto +15c then boom back down to -15c and so on. that sucks.
Anonymous at Wed, 26 Mar 2025 19:21:14 UTC No. 16629270
>>16628884
weather machines went online in the 50s