Harman, WV 26289 Frost Dates
26289, near Harman, WV: the frost window
The last spring frost here typically falls around 05/07, about 252 days from today. Fall's first freeze usually shows up around 10/07, roughly 151 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Harman in Zone 6a (-10 to -5°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
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
At roughly 151 frost-free days, Harman places 35,203 of 40,283 ZIP codes in this dataset. Within WV, it ranks 857 of 885.
Learn more
Two guides worth reading on 26289: zone vs. frost date, on why Zone 6a and Harman's frost date answer different questions, and the frost range, on how to read the range around Harman's dates instead of trusting one.