Arctic air is engulfing almost all of Europe in the next few hours. You should notice a massive temperature drop.
Snow is falling quite widely across parts of northern Europe as we speak.
This animation shows the wind chill temperature, a calculation accounting for strength of wind and air temperature.
Short story: it is going to feel extremely cold for April.
We can't be too surprised by cold and snow and April. This is not rare - it is actually common.
However, this level of cold is impressive. I would say this is a particularly strong Arctic outbreak. Overnight lows will fall below zero widely across Europe.
The thing that is most remarkable in my opinion, is the enormous drop from record-breaking heat at the end of March.
Insects, vegetation etc will be in for a massive shock after summer-style heat.
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.