Central AL? PFFFFFT!
Go buy 6 gallons of RV antifreeze, then the $15 Gempler tire fill gizmo doo-hickey whatcha-ma-callit, fill each tire with 3 gallons each of RV antifreeze, the rest with water and don't worry about it - ever again.
My BIL is a sod farmer just north of Cullman and he uses only 2 gallons per tire. Never had a freeze problem where he lives and he's been doing since he was in high school about 30 years ago or so.
I live in SC TN. I put 4 gallons of RV AF in each rear tire (55 gallons total), I'm not worried about it freezing.
RV AF is potable water compatible. If it *ever* leaks out of one of your tires, don't sweat it - you won't be responsible for the death of millions of birds, deer, turkeys, rats, mice, cats, dogs and blue white whales as some here will have you believe.
Good luck!