FrostDateCheck

Cairo, WV 26148 Frost Dates

Frost dates for Cairo, WV, ZIP 26148

Zone 6b

Typically, the last spring freeze lands around 04/26, roughly 241 days out. The first fall frost typically arrives around 10/20, about 175 frost-free days later.

The USDA Plant Hardiness Zone Map puts Cairo 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 Cairo 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 Cairo compares

Cairo's growing season runs about 175 days, ranking 27,267 of 40,283 US ZIP codes measured here, longest to shortest. Within WV, it ranks 624 of 885.

Learn more

local microclimates explains what one yard in Cairo can differ from the 26148 normal, and zone vs. frost date explains why Zone 6b and Cairo's frost date answer different questions.