Smyrna, GA 30339 Frost Dates
When can you plant in Smyrna, GA?
Around 03/27 is the usual last spring frost, about 211 days away. The first fall frost typically arrives around 11/07, about 225 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.
The actual range around Smyrna's last frost
03/27 is the middle of 30 years of NOAA records, not a promise. Plant by 03/09 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 Smyrna compares
At roughly 225 frost-free days, Smyrna places 11,359 of 40,283 ZIP codes in this dataset. Within GA, it ranks 686 of 921.
Learn more
the frost range covers how to read the range around Smyrna's dates instead of trusting one. local microclimates covers what one yard in Smyrna can differ from the 30339 normal.