However, the best part about Atlanta is that there are hundreds of hyper-local markets, each with their own temperature.

Failure to keep the temperature 'comfortable' and failure to provide heat to a livable standard are not the same.

The pool heater should maintain the water at a certain temperature range, the A/C must be sized appropriately for the pool room and these conditions, a dehumidifier is an absolute and it must be sized accordingly.  

Finishing the basement will not increase the temperature of the home.

The annual low temperature Raleigh average is 50.3 degrees.

Think of the crawlspace as a really short basement, you want it to be part of your house, not open to drastic exterior temperature changes. 

., since the weather has warmed up, the water heater has a smaller temperature rise to lift.

I mean come on anywhere is better than North Pole, Alaska and it's 158 degree temperature range., besides you don't have to deal with us crazy Alaskans.

Temperature 32, dew point 32.

Also set expectations about temperature in the winter/summer.