Mauldin, SC 29662 Frost Dates
29662, near Mauldin, SC: the frost window
Typically, the last spring freeze lands around 03/16, roughly 200 days out. Fall's first freeze usually shows up around 11/20, roughly 250 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 Mauldin, not a forecast for this year.
Stretching the season past the first frost
Mauldin's growing season runs out in roughly 12 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 03/16 isn't a guarantee
03/16 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/26 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/02 and only about 1 year in 10 sees frost after that.
Mauldin against the rest of the dataset
Mauldin's growing season runs about 250 days, ranking 7,459 of 40,283 US ZIP codes measured here, longest to shortest. Within SC, it ranks 123 of 519.
Learn more
Two guides worth reading on 29662: local microclimates, on what one yard in Mauldin can differ from the 29662 normal, and zone vs. frost date, on why Zone 8a and Mauldin's frost date answer different questions.