Nobody is going to boast about not doing that, so let me just speak for a large but not very vocal part of the general population when I say:

I ain't gonna do that.

I looked up Trondheim, NO weather. It's only Rhode Island cold not Minnesota cold. Plenty of people in Providence, RI bike in the Winter. Trondheim also doesn't have the range found in either RI or MN so you don't get ridiculous heat and humidity to bike in.