Smyrna, GA 30378 Frost Dates
Smyrna, GA: when does the frost end?
Around 03/24 is the usual last spring frost, about 208 days away. 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.
The actual range around Smyrna's last frost
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
Smyrna's growing season runs about 231 days, ranking 10,111 of 40,283 US ZIP codes measured here, longest to shortest. Within GA, it ranks 518 of 921.
Learn more
Before leaning on 30378's figures: local microclimates explains what one yard in Smyrna can differ from the 30378 normal, while zone vs. frost date explains why Zone 8a and Smyrna's frost date answer different questions.