The below is for JANUARY 2025, not the whole winter. I did a quick Google looking for winter globally, but couldn't find anything.
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The U.S. had one of the coldest Januaries in 30 years, but globally it was one of the warmest on record. (MAP)
https://weather.com/news/weather/video/january-coldest-decades-globally-warmest
The lower 48 saw January 2025 as one of the coldest in over 30 years, but across the globe, the planet still managed to have one of the warmest Januaries on record.
In case some barroom rightie gives you a hard time about the very cold weather we've had in January, and for much of February, and then rolls their Magat eyes while muttering about "global warming, yeah, right"
Click the above link to see the map which is pretty much red everywhere (warmer), except in the U.S. lower 48 which is pretty much all blue with a subtantial part white (neutral)
I saw an article too about how, even though we're in a warming trend generally in the U.S. in winter (and of course summer), in winter we're having larger swings than in the past with polar vortexes breaking out of the Arctic more frequently than in the past -- a result of climate change.
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Edited to add I found this: December 2024 was the second warmest December on record, (1st was December 2023)
https://climate.copernicus.eu/second-warmest-december-confirms-2024-warmest-year#:~:text=Globally%2C%20December%202024%20was%200.76,December%20average%20for%201850%2D1900.