Minus 31C, I thought the planet was boiling?
Canada is the place in the world that's the most impacted by climate change.
Warmer temperatures in the south tend to affect the polar vortex which slips down to lower latitudes. So, we get arctic air in Montreal.
But since we're east of the great lakes, and that the lakes don't freeze solid anymore, the cold air pushes the moisture faster than it can make it condense into snow. So we get temperatures that are friggin cold and damp.
If we were on the other side of the great lakes, like in Winnipeg, we'd simply have dry and cold weather, which is bearable.
It used to be that we had cold dry days where your nostrils would stick together on a regular basis. Now it only happens every few years.