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I remember training for a marathon, starting in fall and through Winter. I had to leave the house by 6am, and it was a harsh winter in Germany. I usually was well prepared, with scarves and such, but that one morning it was around -15°C - too much. I turned after 1km.

Oh yeah, that temp stings😄. Here in Estonia, we can get around -25C too, don't know if it will happen this year though.