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Charleston, West Virginia frost dates

Average last spring frost: April 16. Average first fall frost: October 26. That gives a growing season of about 192 days. For frost-tender plants, a safer planting date is May 5, after which a freeze happens in only 1 year in 10.
Last frost (50%)
Apr 16
1-in-10 risk after May 5
First frost (50%)
Oct 26
1-in-10 risk before Oct 13
Growing season
192 days
median frost-free days
Hard freeze (28°F)
Apr 1
median last 28°F in spring

Frost risk by date

Chance of frostSpring: frost afterFall: frost before
90%April 1November 6
70%April 9October 31
50%April 16October 26
30%April 23October 21
10%May 5October 13

Read the spring column like this: there is a 10% chance of a 32°F freeze after May 5. These are NOAA probabilities for the Charleston Yeager Airport weather station (USW00013866, elevation 277 m), 1991–2020.

Charleston vegetable planting calendar

Dates count from the 50% last-frost date (April 16). For tomatoes, peppers and other frost-tender crops, waiting until the 10% date (May 5) is the cautious choice.

CropStart seeds indoorsPlant out
BeansMar 26Apr 23 (usually sown directly in the garden)
BroccoliFeb 5Mar 19
Brussels sproutsFeb 5Mar 19
CabbageJan 29Mar 12
CauliflowerFeb 19Apr 2
Sweet cornMar 19Apr 16 (usually sown directly in the garden)
CucumbersApr 2Apr 23
KaleJan 29Mar 12
LeeksJan 1Mar 12
LettuceFeb 26Apr 2
MelonsApr 9Apr 30
OnionsDec 25Mar 5 (from seed; sets and transplants go out at the same time)
PeasFeb 19Mar 19 (usually sown directly in the garden)
PeppersMar 5Apr 30
SquashApr 9Apr 30
TomatoesFeb 19Apr 16

Offsets from Oregon State University Extension's seed-starting table. "Plant out" means transplant, or sow directly for crops usually grown from seed.

Fall frost and season extension

The first fall freeze usually arrives around October 26. There's a 1-in-10 chance it comes before October 13. Harvest tender crops such as basil, tomatoes, peppers and squash before then, or cover them on cold nights. Cool-season crops like kale, cabbage and Brussels sprouts handle light frost, and often taste sweeter after it. A hard freeze (28°F) typically comes around November 5.

Nearby cities

CityLast frost (50%)First frost (50%)Distance
Roanoke, VAApr 3Nov 1~184 km
Columbus, OHApr 18Oct 27~211 km
Pittsburgh, PAApr 23Oct 23~263 km
Lexington, KYApr 13Oct 28~265 km
Cincinnati, OHApr 18Oct 25~278 km
Dayton, OHApr 16Oct 28~285 km

More: all West Virginia frost dates