Smyrna, GA 30302 Frost Dates
Frost dates for Smyrna, GA, ZIP 30302
Around 03/24 is the usual last spring frost, about 208 days away. The first fall frost typically arrives around 11/08, about 231 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 Smyrna, not a forecast for this year.
What to do before the first frost
Zone 8a around Smyrna 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 Smyrna's last frost
03/24 is the middle of 30 years of NOAA records, not a promise. Plant by 03/02 and you're betting against frost in roughly 9 years out of 10. 04/10 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Smyrna compares
At roughly 231 frost-free days, Smyrna places 10,092 of 40,283 ZIP codes in this dataset. Within GA, it ranks 499 of 921.
Learn more
zone vs. frost date explains why Zone 8a and Smyrna's frost date answer different questions, and the frost range explains how to read the range around Smyrna's dates instead of trusting one.