The winter was exceptionally warm for parts of Canada, Greenland and some of the high Arctic. Also very warm Tibet through to Middle East.
The cold beast plagued Russia to give a cold winter here.
This is a summary from December 2020 through February 2021.
THREAD
Meteorologists like to split the year up into 3-month seasonal chunks for statistical purposes. Winter in the Northern Hemisphere is considered Dec, Jan & Feb.
This was December on its own.
This was January on its own. Cold building in Russia, remarkable warmth in Canada and Arctic. North Africa and Tibet notably warm/hot.
Cool Antarctica and Australia.
Very polarised February.
Warm Southern EU, Arctic, Canadian and a lot of Central/Eastern Asia.
Savage cold in North America and extreme cold through Russia and into Scandinavia.
Cool Antarctic and Australia again.
Stacking all 3 months together...
A cold February took central/southern US to a net cooler than normal winter.
Strong cold winter for Russia, otherwise a warm mixed bag.
Anomalous warmth in the high latitudes often occurs when there is polar vortex disruption.