gathermewool
Site Donor 2023
I've experinced it a lot with my first car in the midwest. Fired it up many times when it was below 0, and just driving off 1 minute later was not something people do in those kind of conditions. Having a block heater helped a lot to get the inside warm and the windows clear.
Everywhere, every condition is different, but the further below zero, the less defrost I need here in New England. Colder = less humidity around here. I rarely use my defroster when the temps are well below 32 degrees F, at least for my daily ten miles commute.