I've seen -25.5C on temp sensor this winter. And it has registered in the -20sC more than a few times. Right now we are in a 'heat wave'. It is 43F out. Before this, I think we had been below freezing for close to a month. But it won't last. Tomorrow has a low of -16F and Wednesday a high of -1F forecasted.

BTW, wind chill is the biggest load of bs ever. Say it is the temperatures that were stated above. -31C and -49C with the windchill. Say I stand butt naked outside. There is NO POSSIBLE way my body could ever cool past -31C down to the wind chill 'temperature' of -49C. You can't get colder than the air temperature. It can FEEL more bitter with the wind, but all that needs to be said is, it is such and such temperature and WINDY...not that the wind chill is such and such.

Wind chill was created by the media (TV meteorologists) for shock value. Typical news people.