Marietta, GA 30065 Frost Dates
30065, near Marietta, GA: the frost window
The last spring frost here typically falls around 03/27, about 211 days from today. Fall's first freeze usually shows up around 11/07, roughly 225 days after the last spring frost.
Marietta 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
Marietta's growing season runs out in roughly 10 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 03/27 isn't a guarantee
03/27 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/09 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/12 and only about 1 year in 10 sees frost after that.
Marietta against the rest of the dataset
At roughly 225 frost-free days, Marietta places 11,353 of 40,283 ZIP codes in this dataset. Within GA, it ranks 680 of 921.
Learn more
Two guides worth reading on 30065: local microclimates, on what one yard in Marietta can differ from the 30065 normal, and zone vs. frost date, on why Zone 8a and Marietta's frost date answer different questions.