Found it. Thanks Ferris. Greencast online shows a soil temp of 45 to 50, depending on how far north in Alabama you live.
It looks like Gadston is in the top third of the state so it looks like temps may be in the 50 to 55 range. Go for it.
Has anybody mowed cool season grass yet? Any greenup of poa or cool season grasses? Are any dandelions visible? Forsythia bloom?
Looks like your Growing Degree Days are about 240. I would say it is time to apply pre-emergent.