North Charleston, SC 29418 Frost Dates
North Charleston, SC: when does the frost end?
The last spring frost here typically falls around 03/07, about 191 days from today. Fall's first freeze usually shows up around 11/27, roughly 266 days after the last spring frost.
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 North Charleston, not a forecast for this year.
Stretching the season past the first frost
With roughly 13 weeks until North Charleston's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 03/07 isn't a guarantee
03/07 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/12 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/27 and only about 1 year in 10 sees frost after that.
North Charleston against the rest of the dataset
At roughly 266 frost-free days, North Charleston places 5,910 of 40,283 ZIP codes in this dataset. Within SC, it ranks 43 of 519.
Learn more
Before leaning on 29418's figures: local microclimates explains what one yard in North Charleston can differ from the 29418 normal, while zone vs. frost date explains why Zone 9a and North Charleston's frost date answer different questions.