On the issue of hot/cold: There's nothing I hate more than trying to fall asleep while it's hot (and worse, humid) outside. Laying in bed sweating is unbelievably unpleasant. The sheets stick to your skin and you toss and turn constantly.
In the cold, you also get to start up the fireplace, turn on the heater, and bundle up under a huge pile of blankets. Falling asleep while it's cold is really comfy. So I'm sorry to say it, but I'd rather live in Alaska than anywhere down south. And it's a shame, because I love southern cooking.
You seem aware of the existence of heaters for when it is cold, there is a thing that cools you when indoors called "air conditioning". Granted, before AC I don't understand how anyone lived in the South.