Dunwoody, GA 30338 Frost Dates
Frost dates for Dunwoody, GA, ZIP 30338
Around 03/25 is the usual last spring frost, about 209 days away. The first fall frost typically arrives around 11/09, about 228 frost-free days later.
The USDA Plant Hardiness Zone Map puts Dunwoody 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
Zone 8a around Dunwoody 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.
How much risk comes with planting early here
03/25 is the middle of 30 years of NOAA records, not a promise. Plant by 03/05 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 Dunwoody compares
At roughly 228 frost-free days, Dunwoody places 10,711 of 40,283 ZIP codes in this dataset. Within GA, it ranks 575 of 921.
Learn more
local microclimates explains what one yard in Dunwoody can differ from the 30338 normal, and zone vs. frost date explains why Zone 8a and Dunwoody's frost date answer different questions.