Great Falls, SC 29074 Frost Dates
Frost dates for Great Falls, SC, ZIP 29074
Typically, the last spring freeze lands around 03/23, roughly 207 days out. The first fall frost typically arrives around 11/14, about 237 frost-free days later.
Zone 8a (10 to 15°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 Great Falls, not a forecast for this year.
What to do before the first frost
Zone 8a around Great Falls 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 03/23 isn't a guarantee
03/23 is the middle of 30 years of NOAA records, not a promise. Plant by 03/05 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 Great Falls compares
About 237 days separate Great Falls's last and first frost, putting it 9,123 of 40,283 ZIP codes nationally. Within SC, it ranks 247 of 519.
Learn more
zone vs. frost date explains why Zone 8a and Great Falls's frost date answer different questions, and the frost range explains how to read the range around Great Falls's dates instead of trusting one.