Data: 2023 USDA zones (PRISM/OSU) · NOAA 1991–2020 normals · updated

Planting zone for Clarksburg, WV

Clarksburg, WV is in USDA zone 6b across its 3 ZIP codes. The median last spring frost is April 22 and the first fall frost October 23.

Clarksburg on the zone map

Outlined: its 1 ZIP code areas · tap the map for the zone at any spot · scroll or pinch to zoom

Not the official USDA Plant Hardiness Zone Map. Zones come from the 2023 USDA hardiness-zone data by the PRISM Group, Oregon State University; we re-mapped and recolored them. The official map is at planthardiness.ars.usda.gov.

Zone6b−5 to 0 °F
ZIP codes3
Last frostApr 22
First frostOct 23
Growing season181 days

6b 3 ZIPs

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Clarksburg, WV…

Forecast data: National Weather Service (api.weather.gov), public domain. This is not a warning service — for official frost and freeze warnings see weather.gov.

Frost dates in Clarksburg, WV

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostApril 22median — 50% chance of a later frost
Safe for tender plantsMay 11only 10% chance of frost after
First fall frostOctober 23median — 10% chance by Oct 9
Growing season181 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 10 and returns around November 1.

From the NOAA station Clarksburg 1, WV, elevation 991 ft. NOAA NCEI U.S. Climate Normals 1991–2020, 32 °F threshold. Low spots and valleys can freeze later in spring than the station.

When to plant vegetables in Clarksburg

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Mar 11 – Mar 25
SpinachSow outdoors · Mar 11 – Apr 1
Broccoli, cabbageStart indoors · Feb 11 – Feb 25
Broccoli, cabbageTransplant · Apr 1 – Apr 15
Onion setsPlant outdoors · Mar 25 – Apr 8
PotatoesPlant outdoors · Apr 1 – Apr 15
LettuceSow outdoors · Mar 25 – Apr 8
Carrots, beetsSow outdoors · Apr 1 – Apr 15
TomatoesStart indoors · Feb 25 – Mar 11
TomatoesTransplant · Apr 29 – May 13
Peppers, eggplantStart indoors · Feb 11 – Feb 25
Peppers, eggplantTransplant · May 6 – May 20
BeansSow outdoors · Apr 29 – May 13
Sweet cornSow outdoors · Apr 29 – May 13
Cucumbers, squashSow outdoors · Apr 29 – May 13
Fall lettuce, spinachSow outdoors · Aug 28 – Sep 11
GarlicPlant cloves · Oct 9 – Nov 13
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 22) and first fall frost (Oct 23) with the rules of thumb U.S. extension services publish. Cool-season crops take a light frost; warm-season crops do best once the soil is above about 60 °F.

When spring arrived in 2026

In 2026, spring leaf-out near 26301 came on Mar 10 — 10 days earlier than the 1991–2020 average (Mar 20).

JanFebMarAprMayJun

The Spring Index marks the day when accumulated warmth is enough for lilac and honeysuckle to leaf out — a widely used signal that the growing season has started. Source: USA National Phenology Network, www.usanpn.org — Spring Indices, first leaf, 2026 (data as of 2026-09-08) and 30-year average 1991–2020 (CC BY 4.0).

Native plants for zone 6b in West Virginia

506 plants native to the lower 48 states, recorded in West Virginia, and rated by the USDA to survive −5 °F or colder — the bottom of zone 6b. Each links to its USDA PLANTS profile.

Trees 68

American basswood100 ft · blooms late spring · low shade tolerance · to −46 °FAmerican beech80 ft · blooms mid spring · low shade tolerance · to −44 °FAmerican chestnut115 ft · blooms early summer · high shade tolerance · to −33 °FAmerican elm120 ft · blooms early spring · medium shade tolerance · to −46 °FAmerican sycamore100 ft · blooms spring · medium shade tolerance · to −34 °Farborvitae50 ft · blooms mid spring · medium shade tolerance · to −33 °F

Shrubs 102

alderleaf buckthorn3 ft · blooms late spring · low shade tolerance · to −33 °FAllegheny serviceberry35 ft · blooms early spring · low shade tolerance · to −38 °Falternateleaf dogwood25 ft · blooms mid spring · low shade tolerance · to −47 °FAmerican black currant3 ft · blooms early spring · to −46 °FAmerican hazelnut10 ft · blooms spring · medium shade tolerance · to −33 °FAmerican holly40 ft · blooms mid spring · low shade tolerance · to −20 °F

Wildflowers & perennials 178

American bur-reed3 ft · blooms indeterminate · medium shade tolerance · to −33 °FAmerican eelgrass1 ft · blooms mid summer · high shade tolerance · to −33 °FAmerican pokeweed7 ft · blooms mid summer · low shade tolerance · to −33 °FAmerican speedwell0.8 ft · blooms mid summer · low shade tolerance · to −38 °FAmerican vetch1.3 ft · blooms late spring · high shade tolerance · to −38 °FAmerican water horehound1.8 ft · blooms early summer · low shade tolerance · to −38 °F

Grasses 134

arctic brome3 ft · blooms early summer · low shade tolerance · to −33 °Fawlfruit sedge4 ft · blooms mid spring · low shade tolerance · to −38 °FBailey's sedge2.1 ft · blooms late spring · low shade tolerance · to −33 °Fbeaked spikerush3 ft · blooms late spring · high shade tolerance · to −28 °Fbig bluestem6 ft · blooms summer · high shade tolerance · to −46 °Fbitter panicgrass5 ft · blooms mid summer · high shade tolerance · to −18 °F

Vines 11

American bittersweet15 ft · blooms spring · low shade tolerance · to −38 °Fdevil's darning needles15 ft · blooms mid summer · medium shade tolerance · to −38 °Ffrost grape83 ft · blooms late spring · medium shade tolerance · to −23 °Fgraybark grape50 ft · blooms late spring · medium shade tolerance · to −8 °Fheartleaf peppervine2 ft · blooms late spring · low shade tolerance · to −8 °Fmuscadine30 ft · blooms late spring · medium shade tolerance · to −18 °F

Source: USDA, NRCS. 2026. The PLANTS Database (plants.usda.gov), National Plant Data Team — state distribution, native status and the “Temperature, Minimum” characteristic. Check light, moisture and soil needs before buying; local nurseries and your state native plant society can confirm what thrives in Clarksburg, WV.

Soil in Clarksburg, WV

The soil mapped at the center of ZIP 26301 is Gilpin — silt loam, well drained.

TextureSilt loama good balance for most vegetables
pH4.6strongly acidic; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter2.25%moderate
Hydrologic groupCwater soaks in slowly
Farmland classNot prime farmlandUSDA classification

Map unit: Gilpin-Upshur complex, 15 to 25 percent slopes, severely eroded.

Soil Survey Staff, Natural Resources Conservation Service, USDA. Soil Survey Geographic (SSURGO) Database, via Soil Data Access, accessed 2026-10-29. The soil at the center point of ZIP 26301; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Clarksburg, WV

Summer high85 °Faverage high, July
Winter low22 °Faverage low, January
Hot days16days a year at 90 °F or more
Freezing nights122nights a year at 32 °F or less
Growing degree days3,348base 50 °F — the season’s usable heat
Longest day14 h 56 mindaylight on June 21
Shortest day9 h 24 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation48.2 inper year, rain and melted snow
Snowfall24 inper year; 26 days with snow on the ground

Average high and low, by month

10°20°30°40°50°60°70°80°90°100°32 °FJanuary: average high 40 °F, low 22 °F 40°22° JanFebruary: average high 43 °F, low 23 °F 43°23° FebMarch: average high 52 °F, low 30 °F 52°30° MarApril: average high 65 °F, low 39 °F 65°39° AprMay: average high 75 °F, low 50 °F 75°50° MayJune: average high 82 °F, low 59 °F 82°59° JunJuly: average high 85 °F, low 63 °F 85°63° JulAugust: average high 84 °F, low 62 °F 84°62° AugSeptember: average high 77 °F, low 55 °F 77°55° SepOctober: average high 66 °F, low 42 °F 66°42° OctNovember: average high 53 °F, low 32 °F 53°32° NovDecember: average high 44 °F, low 27 °F 44°27° Dec

Precipitation by month inches · ❄ = snowfall

0″1″2″3″4″5″6″January: 3.54 in precipitation, 7.9 in snowfall 3.5❄8 JanFebruary: 3.39 in precipitation, 7.8 in snowfall 3.4❄8 FebMarch: 4.17 in precipitation, 3.5 in snowfall 4.2❄4 MarApril: 4.08 in precipitation, 0.1 in snowfall 4.1 AprMay: 4.78 in precipitation 4.8 MayJune: 4.85 in precipitation 4.8 JunJuly: 5.33 in precipitation 5.3 JulAugust: 3.96 in precipitation 4.0 AugSeptember: 3.67 in precipitation 3.7 SepOctober: 3.34 in precipitation 3.3 OctNovember: 3.32 in precipitation, 0.7 in snowfall 3.3❄1 NovDecember: 3.81 in precipitation, 3.8 in snowfall 3.8❄4 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Clarksburg 1, WV (2 mi away); precipitation: Clarksburg 1, WV (2 mi away). Daylight is calculated from latitude.

ZIP codes in Clarksburg

263016b
−5 to 0 °F
263026b
−5 to 0 °F
263066b
−5 to 0 °F

West Virginia planting zones →

Questions about Clarksburg

What planting zone is Clarksburg, WV?

Clarksburg, WV is in USDA hardiness zone 6b on the 2023 map (6b: −5 to 0 °F).

When is the last frost in Clarksburg, WV?

The median last spring frost is April 22 and the median first fall frost is October 23 (NOAA 1991–2020 normals, Clarksburg 1 station).

When can I plant a garden in Clarksburg, WV?

Cool-season crops like peas and spinach go in around Mar 11 – Apr 1; tomatoes, peppers, beans and squash after about Apr 29, once frost risk has passed.

What kind of onions grow in Clarksburg, WV?

Intermediate onions: the longest day is 14 h 56 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

How much rain and snow does Clarksburg, WV get?

About 48.2 inches of precipitation a year and 24 inches of snowfall (NOAA 1991–2020 normals).