McClellanville, SC 29458 Frost Dates
McClellanville, SC: when does the frost end?
Around 03/17 is the usual last spring frost, about 201 days away. Fall's first freeze usually shows up around 11/21, roughly 250 days after the last spring frost.
McClellanville 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.
Stretching the season past the first frost
With roughly 12 weeks until McClellanville's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around McClellanville's last frost
03/17 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/25 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/04 and only about 1 year in 10 sees frost after that.
McClellanville against the rest of the dataset
About 250 days separate McClellanville's last and first frost, putting it 7,575 of 40,283 ZIP codes nationally. Within SC, it ranks 133 of 519.
Learn more
Before leaning on 29458's figures: the frost range explains how to read the range around McClellanville's dates instead of trusting one, while local microclimates explains what one yard in McClellanville can differ from the 29458 normal.