Brunswick, GA 31522 Frost Dates
31522, near Brunswick, GA: the frost window
The last spring frost here typically falls around 02/09, about 165 days from today. Fall's first freeze usually shows up around 12/26, roughly 312 days after the last spring frost.
Zone 9a (20 to 25°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Brunswick, not a forecast for this year.
Stretching the season past the first frost
Brunswick's growing season runs out in roughly 17 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
02/09 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/11 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/06 and only about 1 year in 10 sees frost after that.
Brunswick against the rest of the dataset
Brunswick's growing season runs about 312 days, ranking 3,496 of 40,283 US ZIP codes measured here, longest to shortest. Within GA, it ranks 3 of 921.
Learn more
Two guides worth reading on 31522: local microclimates, on what one yard in Brunswick can differ from the 31522 normal, and zone vs. frost date, on why Zone 9a and Brunswick's frost date answer different questions.