Marietta, GA 30064 Frost Dates
Frost dates for Marietta, GA, ZIP 30064
Typically, the last spring freeze lands around 03/27, roughly 211 days out. The first fall frost typically arrives around 11/07, about 225 frost-free days later.
The USDA Plant Hardiness Zone Map puts Marietta 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 Marietta 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
03/27 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 Marietta compares
At roughly 225 frost-free days, Marietta places 11,352 of 40,283 ZIP codes in this dataset. Within GA, it ranks 679 of 921.
Learn more
the frost range explains how to read the range around Marietta's dates instead of trusting one, and local microclimates explains what one yard in Marietta can differ from the 30064 normal.