Harman, WV 26270 Frost Dates
26270, near Harman, WV: the frost window
Around 05/07 is the usual last spring frost, about 252 days away. Fall's first freeze usually shows up around 10/07, roughly 151 days after the last spring frost.
Zone 5b (-15 to -10°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 Harman, not a forecast for this year.
Stretching the season past the first frost
Harman's growing season runs out in roughly 6 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 05/07 isn't a guarantee
05/07 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/22 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/27 and only about 1 year in 10 sees frost after that.
Harman against the rest of the dataset
About 151 days separate Harman's last and first frost, putting it 35,202 of 40,283 ZIP codes nationally. Within WV, it ranks 856 of 885.
Learn more
Two guides worth reading on 26270: local microclimates, on what one yard in Harman can differ from the 26270 normal, and zone vs. frost date, on why Zone 5b and Harman's frost date answer different questions.