Smyrna, GA 30371 Frost Dates
When can you plant in Smyrna, GA?
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.
The USDA Plant Hardiness Zone Map puts Smyrna in Zone 8a (10 to 15°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
About 10 weeks of growing season left in Smyrna before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
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
About 231 days separate Smyrna's last and first frost, putting it 10,107 of 40,283 ZIP codes nationally. Within GA, it ranks 514 of 921.
Learn more
local microclimates covers what one yard in Smyrna can differ from the 30371 normal. zone vs. frost date covers why Zone 8a and Smyrna's frost date answer different questions.