Martinsburg, WV 25440 Frost Dates
When can you plant in Martinsburg, WV?
Typically, the last spring freeze lands around 04/17, roughly 232 days out. The first fall frost typically arrives around 10/23, about 187 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 Martinsburg, not a forecast for this year.
What to do before the first frost
About 8 weeks of growing season left in Martinsburg before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Martinsburg's last frost
04/17 is the middle of 30 years of NOAA records, not a promise. Plant by 04/04 and you're betting against frost in roughly 9 years out of 10. 05/01 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Martinsburg compares
About 187 days separate Martinsburg's last and first frost, putting it 22,306 of 40,283 ZIP codes nationally. Within WV, it ranks 336 of 885.
Learn more
local microclimates covers what one yard in Martinsburg can differ from the 25440 normal. zone vs. frost date covers why Zone 7a and Martinsburg's frost date answer different questions.