Not to be the anti-tourism bureau for the GA-SC-NC area, which is home, but things can still be iffy during the first two weeks of March.
We could have the 70's, but we could also have pretty rotten golf weather, with lots of rain and highs in the 40's. By the end of the month, things are pretty good, and by April great, but the first two weeks can go either way. I have spent many, many March afternoons as a high school golf coach in Georgia (now retired) wondering what in the heck I was doing outside.
You could get lucky, but it's no sure thing.