:h
I would think living in the SE would be even better than living in the PNW for winter camping. We just spent a week over New Years on the Oregon Coast. No the weather is not tropical, highs in the high 40's and lows in the low 30's. The park was about 2/3 to 3/4 full for the weekend. Camping is not only a summertime affair for about 1/2 of the country.
I do feel sorry for those in the NE and Mid west as tough when the temps tend to be below freezing a lot. I have not winterized since the new Years trip, just watching the temps, could get another trip in before the end of February to the Newport Seafood and Wine Festival, when the two SP just north and south of Newport are filled.