Bonneau, SC 29431 Frost Dates
29431, near Bonneau, SC: the frost window
Around 03/23 is the usual last spring frost, about 207 days away. Fall's first freeze usually shows up around 11/13, roughly 237 days after the last spring frost.
Bonneau sits in USDA Zone 8b (15 to 20°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
Bonneau's growing season runs out in roughly 11 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Bonneau's last frost
03/23 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/04 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/07 and only about 1 year in 10 sees frost after that.
Bonneau against the rest of the dataset
Bonneau's growing season runs about 237 days, ranking 9,154 of 40,283 US ZIP codes measured here, longest to shortest. Within SC, it ranks 250 of 519.
Learn more
Two guides worth reading on 29431: local microclimates, on what one yard in Bonneau can differ from the 29431 normal, and zone vs. frost date, on why Zone 8b and Bonneau's frost date answer different questions.