Tybee Island, GA 31328 Frost Dates
Frost dates for Tybee Island, GA, ZIP 31328
Around 03/02 is the usual last spring frost, about 186 days away. The first fall frost typically arrives around 11/30, about 270 frost-free days later.
Tybee Island sits in USDA Zone 9a (20 to 25°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.
What to do before the first frost
Zone 9a around Tybee Island has about 13 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.
The actual range around Tybee Island's last frost
03/02 is the middle of 30 years of NOAA records, not a promise. Plant by 02/04 and you're betting against frost in roughly 9 years out of 10. 03/25 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Tybee Island compares
At roughly 270 frost-free days, Tybee Island places 5,581 of 40,283 ZIP codes in this dataset. Within GA, it ranks 37 of 921.
Learn more
zone vs. frost date explains why Zone 9a and Tybee Island's frost date answer different questions, and the frost range explains how to read the range around Tybee Island's dates instead of trusting one.