Clinton, SC 29331 Frost Dates
29331, near Clinton, SC: the frost window
The last spring frost here typically falls around 04/01, about 216 days from today. Fall's first freeze usually shows up around 11/05, roughly 219 days after the last spring frost.
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 Clinton, not a forecast for this year.
Stretching the season past the first frost
Clinton's growing season runs out in roughly 10 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
04/01 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/15 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/17 and only about 1 year in 10 sees frost after that.
Clinton against the rest of the dataset
At roughly 219 frost-free days, Clinton places 12,997 of 40,283 ZIP codes in this dataset. Within SC, it ranks 428 of 519.
Learn more
Two guides worth reading on 29331: local microclimates, on what one yard in Clinton can differ from the 29331 normal, and zone vs. frost date, on why Zone 8a and Clinton's frost date answer different questions.