Kiawah Island, SC 29455 Frost Dates
When can you plant in Kiawah Island, SC?
Typically, the last spring freeze lands around 02/04, roughly 160 days out. The first fall frost typically arrives around 12/30, about 321 frost-free days later.
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 Kiawah Island, not a forecast for this year.
What to do before the first frost
About 18 weeks of growing season left in Kiawah Island before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 02/04 isn't a guarantee
02/04 is the middle of 30 years of NOAA records, not a promise. Plant by 01/05 and you're betting against frost in roughly 9 years out of 10. 03/04 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Kiawah Island compares
About 321 days separate Kiawah Island's last and first frost, putting it 3,306 of 40,283 ZIP codes nationally. Within SC, it ranks 6 of 519.
Learn more
the frost range covers how to read the range around Kiawah Island's dates instead of trusting one. local microclimates covers what one yard in Kiawah Island can differ from the 29455 normal.