The wind was blowing right down from the Arctic this week. The Americans said it came from Canada, but the Canadians reported it came from Russia.
And we were experiencing extraordinary variations in the weather. One morning I was driving in to a breakfast appointment in minus 28 degrees Celsius (minus 18 F). It was so cold schools, government offices and many businesses just shut down. The day before, it never got above minus 26 the whole day. We had some frozen pipes at our place, but thankfully jacking the heat up managed to thaw them out.
Fast forward a couple of days, the wind had changed direction, and it was above freezing and sunny. We left our coats in the car when shopping, and turned the heat back down.