These last days have been a foretaste of winter. Temperature around -5C. Not really cold thinking about temperature falling down to -51,4C. That's the record in Norway, back in 1884 in Karasjok, a small place far north in Norway, around 69 degrees North. When it is as cold as -50C, you can boil water in a kettle, and if you throw this hot water in the air it will instantly freeze and fall down as snow/ice to the ground. Cool isn't it ?
In my area I have experienced temperature around -35C.