St. George, SC 29433 Frost Dates
Frost dates for St. George, SC, ZIP 29433
Around 03/22 is the usual last spring frost, about 206 days away. The first fall frost typically arrives around 11/12, about 238 frost-free days later.
The USDA Plant Hardiness Zone Map puts St. George 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 St. George 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.
Why 03/22 isn't a guarantee
03/22 is the middle of 30 years of NOAA records, not a promise. Plant by 03/01 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 St. George compares
At roughly 238 frost-free days, St. George places 8,988 of 40,283 ZIP codes in this dataset. Within SC, it ranks 221 of 519.
Learn more
the frost range explains how to read the range around St. George's dates instead of trusting one, and local microclimates explains what one yard in St. George can differ from the 29433 normal.