Frost Dates for Charleston, WV 25312

Charleston has 12 ZIP codes. The Charleston, WV frost page lists all of them with their dates.

Last spring frost April 22 · First fall frost October 21 · 182 frost-free days · USDA Zone 7a

ZIP 25312 has about 10,000 people, one of 12 ZIP codes in Charleston.

Long season: 182 frost-free days. Spring frost risk spans April 7–May 8 (31 days). Fall frost risk spans October 5–November 7 (33 days).

Frost probability for 25312

Frost10%50%90%
Spring (last frost)May 8April 22April 7
Fall (first frost)October 5October 21November 7

Dates come from NOAA 1971–2000 freeze probabilities at CHARLESTON - YEAGER AP (10.7 km away); the 50% date is the median year.

Which crops fit a 182-day season in Charleston

In Charleston (182 frost-free days, a long season), 30 of 56 planner crops fit outright, 25 get two plantings, 1 crop is perennial.

CropStart indoorsPlant out / sowDays you haveVerdictLast sow date
TomatoMar 18May 6–May 13140fits: 80 days to maturity, 140 available after May 6.Jun 21
PepperMar 11May 6–May 13140fits: 75 days to maturity, 140 available after May 6.Jun 26
LettuceFeb 25Mar 25–Apr 1217two-plantings: Plant Mar 25 and again by Aug 30; both mature before Oct 28.Aug 30
Carrots—Apr 1–Apr 8224fits: 70 days to maturity, 224 available after Apr 1.Aug 19
CucumberApr 1May 6–May 13154two-plantings: Plant May 6 and again by Jul 25; both mature before Oct 7.Jul 25
Beans—Apr 29–May 13168two-plantings: Plant Apr 29 and again by Aug 1; both mature before Oct 14.Aug 1
Peas—Feb 25–May 6245fits: 65 days to maturity, 245 available after Feb 25.Aug 10
ZucchiniApr 8May 6–May 13154two-plantings: Plant May 6 and again by Jul 30; both mature before Oct 7.Jul 30
OnionJan 28Mar 25–Apr 8217fits: 100 days to maturity, 217 available after Mar 25.—
Spinach—Feb 25–Apr 15259two-plantings: Plant Feb 25 and again by Sep 18; both mature before Nov 11.Sep 18
KaleFeb 11Mar 25–Apr 8231two-plantings: Plant Mar 25 and again by Sep 3; both mature before Nov 11.Sep 3
BroccoliFeb 25Mar 25–Apr 8217fits: 80 days to maturity, 217 available after Mar 25.Jul 26
CabbageFeb 25Mar 25–Apr 8231fits: 70 days to maturity, 231 available after Mar 25.Aug 19
Radish—Feb 25–May 20245two-plantings: Plant Feb 25 and again by Sep 19; both mature before Oct 28.Sep 19
Beets—Feb 25–May 20245two-plantings: Plant Feb 25 and again by Aug 20; both mature before Oct 28.Aug 20
Potatoes—Apr 8–Apr 15203fits: 90 days to maturity, 203 available after Apr 8.—
Garlic—Oct 21287overwinter: Plant Oct 21 to Nov 11; harvest the following summer.Nov 11
Strawberry—Mar 18–May 13238perennial: A perennial: plant Mar 18; it fruits from the following year and keeps producing for several years.—
CornMar 25Apr 29–May 6154fits: 75 days to maturity, 154 available after Apr 29.Jul 3
PumpkinApr 8May 6–May 6147fits: 100 days to maturity, 147 available after May 6.Jun 8
CauliflowerMar 11Apr 15–Apr 29196fits: 75 days to maturity, 196 available after Apr 15.Jul 31
Swiss ChardFeb 25Apr 8–Apr 8203two-plantings: Plant Apr 8 and again by Aug 20; both mature before Oct 28.Aug 20
Arugula—Feb 25–May 20259two-plantings: Plant Feb 25 and again by Sep 18; both mature before Nov 11.Sep 18
Brussel SproutsFeb 25Mar 25–Apr 8231fits: 100 days to maturity, 231 available after Mar 25.Jul 20
Butternut SquashApr 8May 6–May 13147fits: 100 days to maturity, 147 available after May 6.Jun 8
EggplantMar 4May 6–May 13140fits: 70 days to maturity, 140 available after May 6.Jul 1
OkraMar 25Apr 29–May 6161two-plantings: Plant Apr 29 and again by Jul 30; both mature before Oct 7.Jul 30
BasilMar 18May 13–May 13147two-plantings: Plant May 13 and again by Jul 25; both mature before Oct 7.Jul 25
Cilantro—Mar 25–Apr 15217two-plantings: Plant Mar 25 and again by Aug 25; both mature before Oct 28.Aug 25
ParsleyFeb 11Apr 29–May 6182fits: 70 days to maturity, 182 available after Apr 29.Aug 5
CeleryFeb 11Apr 29–May 13182fits: 120 days to maturity, 182 available after Apr 29.Jun 16
ScallionsFeb 11Mar 25–Apr 8231two-plantings: Plant Mar 25 and again by Aug 29; both mature before Nov 11.Aug 29
Turnip—Mar 25–Apr 8231two-plantings: Plant Mar 25 and again by Sep 8; both mature before Nov 11.Sep 8
Kohlrabi—Mar 11–Mar 25245two-plantings: Plant Mar 11 and again by Sep 3; both mature before Nov 11.Sep 3
Bok ChoyMar 25Apr 15–Apr 22196two-plantings: Plant Apr 15 and again by Aug 30; both mature before Oct 28.Aug 30
CollardsFeb 11Mar 25–Apr 8231two-plantings: Plant Mar 25 and again by Aug 29; both mature before Nov 11.Aug 29
CantaloupeApr 8May 6–May 13140fits: 85 days to maturity, 140 available after May 6.Jun 16
ChivesJan 28Apr 29–May 6196fits: 90 days to maturity, 196 available after Apr 29.—
Dill—Feb 25–May 20245two-plantings: Plant Feb 25 and again by Aug 20; both mature before Oct 28.Aug 20
OreganoFeb 11Apr 29–May 6196fits: 80 days to maturity, 196 available after Apr 29.—
RosemaryJan 28Apr 29–May 6182fits: 80 days to maturity, 182 available after Apr 29.—
SageFeb 25Apr 29–May 6196fits: 75 days to maturity, 196 available after Apr 29.—
ThymeFeb 11Apr 29–May 6196fits: 90 days to maturity, 196 available after Apr 29.—
CalendulaMar 11Apr 8–Apr 22203two-plantings: Plant Apr 8 and again by Aug 25; both mature before Oct 28.Aug 25
CosmosMar 25Apr 22–May 6168two-plantings: Plant Apr 22 and again by Jul 25; both mature before Oct 7.Jul 25
LavenderJan 28Apr 22–May 6203fits: 90 days to maturity, 203 available after Apr 22.—
MarigoldsMar 11Apr 22–Apr 29168two-plantings: Plant Apr 22 and again by Aug 4; both mature before Oct 7.Aug 4
MelonsApr 8May 6–May 13140fits: 85 days to maturity, 140 available after May 6.Jun 16
Mint—Apr 22–May 6203fits: 90 days to maturity, 203 available after Apr 22.—
NasturtiumsMar 25Apr 22–Apr 29168two-plantings: Plant Apr 22 and again by Jul 30; both mature before Oct 7.Jul 30
Pole Beans—Apr 29–May 13161fits: 65 days to maturity, 161 available after Apr 29.Jul 20
Spaghetti SquashApr 8May 6–May 13147fits: 90 days to maturity, 147 available after May 6.Jun 18
Sunflowers—Apr 22–May 6168fits: 70 days to maturity, 168 available after Apr 22.Jul 15
TomatillosFeb 25Apr 29–May 6147fits: 75 days to maturity, 147 available after Apr 29.Jun 26
WatermelonApr 8Apr 29–May 6147fits: 80 days to maturity, 147 available after Apr 29.Jun 21
Yellow SquashApr 8May 6–May 13154two-plantings: Plant May 6 and again by Jul 30; both mature before Oct 7.Jul 30
ZinniasMar 25Apr 22–May 6168two-plantings: Plant Apr 22 and again by Jul 25; both mature before Oct 7.Jul 25

Month by month in Charleston

MonthWhat to do
JanuaryStart indoors: Chives (Jan 28), Lavender (Jan 28), Onion (Jan 28), Rosemary (Jan 28).
FebruaryStart indoors: Celery (Feb 11), Collards (Feb 11), Kale (Feb 11), Oregano (Feb 11), Parsley (Feb 11), Scallions (Feb 11), +8 more. Direct sow from: Arugula (Feb 25), Beets (Feb 25), Dill (Feb 25), Peas (Feb 25), Radish (Feb 25), Spinach (Feb 25).
MarchStart indoors: Eggplant (Mar 4), Calendula (Mar 11), Cauliflower (Mar 11), Marigolds (Mar 11), Pepper (Mar 11), Basil (Mar 18), +7 more. Direct sow from: Kohlrabi (Mar 11), Cilantro (Mar 25), Turnip (Mar 25). Transplant from: Broccoli (Mar 25), Brussel Sprouts (Mar 25), Cabbage (Mar 25), Collards (Mar 25), Kale (Mar 25), Lettuce (Mar 25), +2 more. Plant: Strawberry (Mar 18).
AprilStart indoors: Cucumber (Apr 1), Butternut Squash (Apr 8), Cantaloupe (Apr 8), Melons (Apr 8), Pumpkin (Apr 8), Spaghetti Squash (Apr 8), +3 more. Direct sow from: Carrots (Apr 1), Potatoes (Apr 8), Sunflowers (Apr 22), Beans (Apr 29), Pole Beans (Apr 29). Transplant from: Calendula (Apr 8), Swiss Chard (Apr 8), Bok Choy (Apr 15), Cauliflower (Apr 15), Cosmos (Apr 22), Lavender (Apr 22), +15 more. Last frost around April 22.
MayTransplant from: Butternut Squash (May 6), Cantaloupe (May 6), Cucumber (May 6), Eggplant (May 6), Melons (May 6), Pepper (May 6), +6 more.
JuneLast sowing dates: Butternut Squash (Jun 8), Pumpkin (Jun 8), Cantaloupe (Jun 16), Celery (Jun 16), Melons (Jun 16), Spaghetti Squash (Jun 18), +4 more.
JulyLast sowing dates: Eggplant (Jul 1), Corn (Jul 3), Sunflowers (Jul 15), Brussel Sprouts (Jul 20), Pole Beans (Jul 20), Basil (Jul 25), +9 more.
AugustLast sowing dates: Beans (Aug 1), Marigolds (Aug 4), Parsley (Aug 5), Peas (Aug 10), Cabbage (Aug 19), Carrots (Aug 19), +9 more.
SeptemberLast sowing dates: Kale (Sep 3), Kohlrabi (Sep 3), Turnip (Sep 8), Arugula (Sep 18), Spinach (Sep 18), Radish (Sep 19).
OctoberDirect sow from: Garlic (Oct 21). First frost around October 21.
NovemberLast sowing dates: Garlic (Nov 11).
DecemberClean up spent plants. Add compost to beds. Rest, review, and plan next year's garden.

Frequently Asked Questions

What is the last frost date for Charleston, WV (ZIP 25312)?

The median last spring frost date for Charleston, WV (ZIP code 25312) is around April 22. This is the 50th-percentile date — meaning half of all years see frost end before this date. Use the 10% and 90% dates to understand the full range of risk in your area. One year in ten frost ends before April 7; one in ten it runs past May 8.

What is the first fall frost date in Charleston, WV?

The median first fall frost date for Charleston, WV is around October 21. Plan to harvest or protect frost-sensitive crops like tomatoes and peppers at least a week before this date to avoid losses. The first frost arrives around October 5 in the earliest one-in-ten years, so cover tomatoes and peppers from then.

How long is the growing season in Charleston, WV?

The frost-free growing season in Charleston is about 182 days. This window — from your last spring frost to your first fall frost — is when warm-season vegetables thrive. Cold-hardy crops like kale, spinach, and peas can extend your season by weeks on either side. In Charleston (182 frost-free days, a long season), 30 of 56 planner crops fit outright, 25 get two plantings, 1 crop is perennial.

What USDA hardiness zone is Charleston, WV?

Charleston, WV is in USDA hardiness zone 7a (2023 USDA Plant Hardiness Zone Map). Zones come from the average coldest winter temperature, so they tell you which perennials survive the winter; the frost dates on this page tell you when to plant.

When should I start tomatoes indoors in Charleston, WV?

Start tomatoes indoors Mar 18 and plant out May 6 in Charleston. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.

How many plantings of lettuce fit in Charleston?

Two: plant Mar 25 and again by Aug 30; both mature before Oct 28.

When do I plant garlic in Charleston?

Oct 21 to Nov 11; it overwinters and is ready the following summer.

Can I get two tomato crops in Charleston?

Yes: plant out May 6 for a summer crop, and set out a second round of transplants by Jun 21 for a fall crop.

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