In 2009, we took the boat to New Bern, NC in November. Then left there on January 11th enroute to the Keys. Had long underwear on until April. No real issues at all. If your bridge in enclosed, you will find that a sunny day is just like being in a greenhouse. Not a T- shirt environment perhaps, but certainly quite comfortable. At night, sleeping bags worked fine. It was a great trip during one of the colder winters in recent records. Only had one or two incidents where the marina's pipes were frozen & no water was available. Once we were out of NC that sort of thing was done with. Fuel was never an issue. Have a ball