Thunderbolt, GA 31410 Frost Dates
Frost dates for Thunderbolt, GA, ZIP 31410
The last spring frost here typically falls around 03/02, about 186 days from today. The first fall frost typically arrives around 11/30, about 270 frost-free days later.
Thunderbolt sits in USDA Zone 9a (20 to 25°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
Zone 9a around Thunderbolt has about 13 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.
How much risk comes with planting early here
03/02 is the middle of 30 years of NOAA records, not a promise. Plant by 02/04 and you're betting against frost in roughly 9 years out of 10. 03/25 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Thunderbolt compares
At roughly 270 frost-free days, Thunderbolt places 5,591 of 40,283 ZIP codes in this dataset. Within GA, it ranks 46 of 921.
Learn more
the frost range explains how to read the range around Thunderbolt's dates instead of trusting one, and local microclimates explains what one yard in Thunderbolt can differ from the 31410 normal.