Blenheim, SC 29516 Frost Dates
Blenheim, SC: when does the frost end?
Around 03/26 is the usual last spring frost, about 210 days away. Fall's first freeze usually shows up around 11/08, roughly 228 days after the last spring frost.
Blenheim 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
With roughly 10 weeks until Blenheim's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
03/26 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/09 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/12 and only about 1 year in 10 sees frost after that.
Blenheim against the rest of the dataset
About 228 days separate Blenheim's last and first frost, putting it 10,931 of 40,283 ZIP codes nationally. Within SC, it ranks 356 of 519.
Learn more
Before leaning on 29516's figures: the frost range explains how to read the range around Blenheim's dates instead of trusting one, while local microclimates explains what one yard in Blenheim can differ from the 29516 normal.