North Charleston, SC 29404 Frost Dates
Frost dates for North Charleston, SC, ZIP 29404
Around 03/07 is the usual last spring frost, about 191 days away. The first fall frost typically arrives around 11/27, about 266 frost-free days later.
North Charleston 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 North Charleston 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 North Charleston's last frost
03/07 is the middle of 30 years of NOAA records, not a promise. Plant by 02/12 and you're betting against frost in roughly 9 years out of 10. 03/27 is the safer bet, historically only a 1-in-10 chance of frost that late.
How North Charleston compares
About 266 days separate North Charleston's last and first frost, putting it 5,909 of 40,283 ZIP codes nationally. Within SC, it ranks 42 of 519.
Learn more
the frost range explains how to read the range around North Charleston's dates instead of trusting one, and local microclimates explains what one yard in North Charleston can differ from the 29404 normal.