Smyrna, GA 30374 Frost Dates
Smyrna, GA: when does the frost end?
Typically, the last spring freeze lands around 03/24, roughly 208 days out. Fall's first freeze usually shows up around 11/08, roughly 231 days after the last spring frost.
Smyrna sits in USDA Zone 8a (10 to 15°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.
Stretching the season past the first frost
With roughly 10 weeks until Smyrna's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 03/24 isn't a guarantee
03/24 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/02 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/10 and only about 1 year in 10 sees frost after that.
Smyrna against the rest of the dataset
About 231 days separate Smyrna's last and first frost, putting it 10,108 of 40,283 ZIP codes nationally. Within GA, it ranks 515 of 921.
Learn more
Before leaning on 30374's figures: local microclimates explains what one yard in Smyrna can differ from the 30374 normal, while zone vs. frost date explains why Zone 8a and Smyrna's frost date answer different questions.