Smithfield, WV 26437 Frost Dates
Frost dates for Smithfield, WV, ZIP 26437
Around 05/03 is the usual last spring frost, about 248 days away. The first fall frost typically arrives around 10/10, about 159 frost-free days later.
Smithfield sits in USDA Zone 6a (-10 to -5°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 6a around Smithfield has about 6 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 05/03 isn't a guarantee
05/03 is the middle of 30 years of NOAA records, not a promise. Plant by 04/19 and you're betting against frost in roughly 9 years out of 10. 05/22 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Smithfield compares
About 159 days separate Smithfield's last and first frost, putting it 32,806 of 40,283 ZIP codes nationally. Within WV, it ranks 787 of 885.
Learn more
local microclimates explains what one yard in Smithfield can differ from the 26437 normal, and zone vs. frost date explains why Zone 6a and Smithfield's frost date answer different questions.