Grantsville, WV 26147 Frost Dates
Frost dates for Grantsville, WV, ZIP 26147
Around 04/26 is the usual last spring frost, about 241 days away. The first fall frost typically arrives around 10/20, about 175 frost-free days later.
The USDA Plant Hardiness Zone Map puts Grantsville in Zone 6b (-5 to 0°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 6b around Grantsville 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.
How much risk comes with planting early here
04/26 is the middle of 30 years of NOAA records, not a promise. Plant by 04/15 and you're betting against frost in roughly 9 years out of 10. 05/10 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Grantsville compares
At roughly 175 frost-free days, Grantsville places 27,184 of 40,283 ZIP codes in this dataset. Within WV, it ranks 619 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.