Macon-Bibb County, GA 31209 Frost Dates
Frost dates for Macon-Bibb County, GA, ZIP 31209
The last spring frost here typically falls around 03/21, about 205 days from today. The first fall frost typically arrives around 11/10, about 235 frost-free days later.
The USDA Plant Hardiness Zone Map puts Macon-Bibb County in Zone 8b (15 to 20°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 8b around Macon-Bibb County has about 11 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
03/21 is the middle of 30 years of NOAA records, not a promise. Plant by 02/28 and you're betting against frost in roughly 9 years out of 10. 04/07 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Macon-Bibb County compares
At roughly 235 frost-free days, Macon-Bibb County places 9,542 of 40,283 ZIP codes in this dataset. Within GA, it ranks 404 of 921.
Learn more
zone vs. frost date explains why Zone 8b and Macon-Bibb County's frost date answer different questions, and the frost range explains how to read the range around Macon-Bibb County's dates instead of trusting one.