That site is great for soil temps in the winter time.So in discussions with AI today it educated me on there being five difference classes of weather station quality. Class 1 being the best and 5 the worst respectively. KATL and KPDK are both class 5, and KFCC in Peachtree City being 1 or 2. The begs the question why any class 5 station would be used for official readings. I also came across this site from the University of Georgia which has links to weather stations across the state.
UGA Weather Network