Blacksburg, SC 29702 Frost Dates
Frost dates for Blacksburg, SC, ZIP 29702
Typically, the last spring freeze lands around 04/20, roughly 235 days out. The first fall frost typically arrives around 10/24, about 186 frost-free days later.
The USDA Plant Hardiness Zone Map puts Blacksburg in Zone 8a (10 to 15°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
Zone 8a around Blacksburg has about 8 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
The actual range around Blacksburg's last frost
04/20 is the middle of 30 years of NOAA records, not a promise. Plant by 04/02 and you're betting against frost in roughly 9 years out of 10. 05/06 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Blacksburg compares
About 186 days separate Blacksburg's last and first frost, putting it 22,861 of 40,283 ZIP codes nationally. Within SC, it ranks 513 of 519.
Learn more
local microclimates explains what one yard in Blacksburg can differ from the 29702 normal, and zone vs. frost date explains why Zone 8a and Blacksburg's frost date answer different questions.