Union, WV 24945 Frost Dates
When can you plant in Union, WV?
Around 04/30 is the usual last spring frost, about 245 days away. The first fall frost typically arrives around 10/12, about 165 frost-free days later.
The USDA Plant Hardiness Zone Map puts Union in Zone 7a (0 to 5°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
About 6 weeks of growing season left in Union before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 04/30 isn't a guarantee
04/30 is the middle of 30 years of NOAA records, not a promise. Plant by 04/12 and you're betting against frost in roughly 9 years out of 10. 05/17 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Union compares
At roughly 165 frost-free days, Union places 30,714 of 40,283 ZIP codes in this dataset. Within WV, it ranks 740 of 885.
Learn more
local microclimates covers what one yard in Union can differ from the 24945 normal. zone vs. frost date covers why Zone 7a and Union's frost date answer different questions.