GA gets cold. At least Atlanta does, but that is the only sizeable town in the state I think. TX hill country gets cold too. Cold in Austin is 45 with a fierce wind. I do remember, though, moving to Austin in early February. It was in the 70s all week and perfect weather to golf. The heat kicks in about mid May and lasts until October. People say it is a dry heat. I say 107 degrees is too hot, humidity or no humidity.
You might also consider Florida. The humid heat precludes strenuous activity during the day for much of the year.
The best weather in the continental US is San Diego. The average temperature is like 73 degrees AND sunny and low humidity. I would also write-in Seattle as a sleeper. Seattle has it all: mountains, rain forests, saltwater, etc. It gets chilly but not NY style cold. Maybe it snows once a year. Summers are a blast. It only gets into the nineties a few times a year and is low humidity. The rain is more like intermittent drizzle most of the time. It drizzles for 20 minutes. The sun comes out for an hour. Then it drizzles some more. There are times, however, when it seems like it rains for a couple weeks straight. Also, the traffic is horrible, but so is the traffic in San Diego, Austin, etc.