Williamson, WV 25661 Frost Dates
Frost dates for Williamson, WV, ZIP 25661
Around 04/20 is the usual last spring frost, about 235 days away. The first fall frost typically arrives around 10/24, about 186 frost-free days later.
Zone 7a (0 to 5°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Williamson, not a forecast for this year.
What to do before the first frost
Zone 7a around Williamson 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 Williamson's last frost
04/20 is the middle of 30 years of NOAA records, not a promise. Plant by 04/03 and you're betting against frost in roughly 9 years out of 10. 05/09 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Williamson compares
At roughly 186 frost-free days, Williamson places 22,828 of 40,283 ZIP codes in this dataset. Within WV, it ranks 351 of 885.
Learn more
the frost range explains how to read the range around Williamson's dates instead of trusting one, and local microclimates explains what one yard in Williamson can differ from the 25661 normal.