A few days ago we still had windchill below -20 c at night and it felt like it would never end. I still wore my parka on the walk to the market today. Almost out of desperation, I began to do a bit of work on a small patch of dirt where the snow melted and realized that it was weirdly hot. We took out a thermometer, put it by the wall, and it measured over +30c! Thank heavens for microclimates and big white walls!