You definitely need to talk to forum member dakster as he moved his volt from Miami to Alaska a few years back. But I think he is voltless now as they really needed and AWD CUV in Alaska. If you can plug in everywhere you go, that will keep the batteries from getting too cold. If you allow the battery to get cold soaked for too long, the car will not start.
During snowageddon 1, the first time I had my car at work in below freezing temps, the ICE started abruptly upon starting and ran for 5 min or so before it would let me actually use battery power. So the volt is designed to work in frigid conditions, but batteries don't like cold. Your EV range will plummet, just be ready for it.