Grantsville, WV 25267 Frost Dates
Frost dates for Grantsville, WV, ZIP 25267
Around 04/29 is the usual last spring frost, about 244 days away. The first fall frost typically arrives around 10/19, about 171 frost-free days later.
Grantsville sits in USDA Zone 6b (-5 to 0°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.
What to do before the first frost
Zone 6b around Grantsville has about 7 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.
Why 04/29 isn't a guarantee
04/29 is the middle of 30 years of NOAA records, not a promise. Plant by 04/16 and you're betting against frost in roughly 9 years out of 10. 05/17 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Grantsville compares
About 171 days separate Grantsville's last and first frost, putting it 28,785 of 40,283 ZIP codes nationally. Within WV, it ranks 685 of 885.
Learn more
zone vs. frost date explains why Zone 6b and Grantsville's frost date answer different questions, and the frost range explains how to read the range around Grantsville's dates instead of trusting one.