You posted this in "Fall and Winter Road Trips" forum, which leads me to the question, When is this planned trip? If you are actually going to travel when temperatures regularly get below freezing for more than an hour or so, at night, an RV is not going to be the right vehicle. First, the systems (water and sewer) have to be winterized -- i.e. shut down to prevent freezing and breakage. That means blowing out the pipes and putting some chemicals through it, not something you want to have done every other day just to be able to use it. Also, many RV's are not well insulated, and some of them have downright LOUD furnace blowers.
That said, though, my parents drove an RV around Michigan a number of years ago and encountered no issues other than with RV parks either being full or non-existent. (These were listed in a brand new directory but had never opened for the season. This happens occasionally!) They traveled in the summer, though.
Donna