Decatur, GA 30306 Frost Dates
Frost dates for Decatur, GA, ZIP 30306
Typically, the last spring freeze lands around 03/25, roughly 209 days out. The first fall frost typically arrives around 11/09, about 228 frost-free days later.
Zone 8a (10 to 15°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Decatur, not a forecast for this year.
What to do before the first frost
Zone 8a around Decatur has about 10 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
The actual range around Decatur's last frost
03/25 is the middle of 30 years of NOAA records, not a promise. Plant by 03/05 and you're betting against frost in roughly 9 years out of 10. 04/12 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Decatur compares
At roughly 228 frost-free days, Decatur places 10,738 of 40,283 ZIP codes in this dataset. Within GA, it ranks 596 of 921.
Learn more
the frost range explains how to read the range around Decatur's dates instead of trusting one, and local microclimates explains what one yard in Decatur can differ from the 30306 normal.