When i was a schoolboy,i didn't have to go to school at a temperature below -35. But it was a very formal approach, because under heavy frost it has always been very sunny and windless. And at -25 very unpleasant wind could be ... And now I'm in Leipzig, no snow, and the entire German people is so actively drinking mulled wine, it is not clear how will it be possible to drink without disgust before the onset of Christmas. I think the secret lies in the high prices for public transport (as a reason), and the widespread use of bicycles (on the bike you can ride in any condition)