NC is not that far north that you should have to worry about the cold weather. Although they do get cold spells, nothing like farther north, like here in Ohio. I think you are worry a little too much. If you were moving in the winter time, it would take longer to adjust to the temperature change, but moving during the warmer months, he will adapt just fine when the colder weather rolls around. Dogs adjust to the colder weather much easier than us humans do.
__________________ Linda and her  Baker's Dozen, RIP  my angels Reggie & Bo |