-52 fort McMurray Alberta. I don't know what the windchill was but I remember my trucks temp sensor wouldnt go that low. I didn't plug in the truck that night and it sounded like rocks banging around under the hood.
-56 in Prince George in 1993. I moved shortly afterwards
I remember that year in Kamloops. I think it got to -80 with wind chill. We had to shut our sawmill down, and my brothers skidder kept freezing up on him.
well... i worked at the airport in montreal a little while ago and even though the coldest it was (that i remember) was about -45 but since it was in an open field with jet blast all around,.....it got pretty cold with the windchill