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

Planting zone for 24927 — Cass, WV

ZIP code 24927 (Cass, Pocahontas County) is in USDA zone 6a: the coldest winter night averages −10 to −5 °F. The median last spring frost is May 12 and the first fall frost October 7.

Where ZIP 24927 is

Outlined: the ZIP code area · 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.

Zone6a−10 to −5 °F
Coldest night−23.3 to −20.6 °C
Last frostMay 12
First frostOct 7
2012 zone5b

Was 5b on the 2012 map — half a zone warmer now. The zone is the one at the center of the ZIP code; hilly ZIPs can span two zones. What zone 6a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Cass, 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 Cass, WV

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostMay 12median — 50% chance of a later frost
Safe for tender plantsMay 29only 10% chance of frost after
First fall frostOctober 7median — 10% chance by Sep 24
Growing season147 daysfrost-free, median

A hard freeze (28 °F) usually ends around May 2 and returns around October 17.

From the NOAA station Snowshoe, WV — 5 miles away, elevation 4,846 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 24927

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Mar 31 – Apr 14
SpinachSow outdoors · Mar 31 – Apr 21
Broccoli, cabbageStart indoors · Mar 3 – Mar 17
Broccoli, cabbageTransplant · Apr 21 – May 5
Onion setsPlant outdoors · Apr 14 – Apr 28
PotatoesPlant outdoors · Apr 21 – May 5
LettuceSow outdoors · Apr 14 – Apr 28
Carrots, beetsSow outdoors · Apr 21 – May 5
TomatoesStart indoors · Mar 17 – Mar 31
TomatoesTransplant · May 19 – Jun 2
Peppers, eggplantStart indoors · Mar 3 – Mar 17
Peppers, eggplantTransplant · May 26 – Jun 9
BeansSow outdoors · May 19 – Jun 2
Sweet cornSow outdoors · May 19 – Jun 2
Cucumbers, squashSow outdoors · May 19 – Jun 2
Fall lettuce, spinachSow outdoors · Aug 12 – Aug 26
GarlicPlant cloves · Sep 23 – Oct 28
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (May 12) and first fall frost (Oct 7) 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 24927 came on Mar 16 — 22 days earlier than the 1991–2020 average (Apr 7).

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 6a in West Virginia

502 plants native to the lower 48 states, recorded in West Virginia, and rated by the USDA to survive −10 °F or colder — the bottom of zone 6a. 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 177

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 133

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 9

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 °Fmuscadine30 ft · blooms late spring · medium shade tolerance · to −18 °Friverbank grape45 ft · blooms late spring · medium shade tolerance · to −33 °Fsummer grape30 ft · blooms late spring · low shade tolerance · to −23 °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 Cass, WV.

Soil in Cass, WV

The soil mapped at the center of ZIP 24927 is Cateache — slightly decomposed plant material, well drained.

TextureSlightly decomposed plant materialtop layer
pH4.0strongly acidic; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter69%high
Hydrologic groupCwater soaks in slowly
Farmland classNot prime farmlandUSDA classification

Map unit: Cateache channery silt loam, 35 to 55 percent slopes, very stony.

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 24927; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Cass, WV

Summer high70 °Faverage high, July
Winter low14 °Faverage low, January
Hot days0days a year at 90 °F or more
Freezing nights149nights a year at 32 °F or less
Growing degree days1,502base 50 °F — the season’s usable heat
Longest day14 h 50 mindaylight on June 21
Shortest day9 h 29 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation62.5 inper year, rain and melted snow
Snowfall145 inper year; 91 days with snow on the ground

Average high and low, by month

0°10°20°30°40°50°60°70°80°32 °FJanuary: average high 30 °F, low 14 °F 30°14° JanFebruary: average high 32 °F, low 16 °F 32°16° FebMarch: average high 39 °F, low 23 °F 39°23° MarApril: average high 51 °F, low 33 °F 51°33° AprMay: average high 60 °F, low 43 °F 60°43° MayJune: average high 67 °F, low 51 °F 67°51° JunJuly: average high 70 °F, low 55 °F 70°55° JulAugust: average high 69 °F, low 55 °F 69°55° AugSeptember: average high 64 °F, low 49 °F 64°49° SepOctober: average high 53 °F, low 38 °F 53°38° OctNovember: average high 42 °F, low 27 °F 42°27° NovDecember: average high 34 °F, low 20 °F 34°20° Dec

Precipitation by month inches · ❄ = snowfall

0″2″4″6″January: 6.06 in precipitation, 35.5 in snowfall 6.1❄36 JanFebruary: 4.95 in precipitation, 31.4 in snowfall 5.0❄31 FebMarch: 5.97 in precipitation, 27.2 in snowfall 6.0❄27 MarApril: 5.17 in precipitation, 8.5 in snowfall 5.2❄9 AprMay: 5.84 in precipitation, 0.8 in snowfall 5.8❄1 MayJune: 5.71 in precipitation 5.7 JunJuly: 4.87 in precipitation 4.9 JulAugust: 4.76 in precipitation 4.8 AugSeptember: 4.42 in precipitation 4.4 SepOctober: 4.10 in precipitation, 2.8 in snowfall 4.1❄3 OctNovember: 4.47 in precipitation, 9.7 in snowfall 4.5❄10 NovDecember: 6.22 in precipitation, 28.8 in snowfall 6.2❄29 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Snowshoe, WV (5 mi away); precipitation: Snowshoe, WV (5 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

3 of the 8 nearest ZIP codes are in a different zone — elevation and distance from water change winter lows quickly.

262096a
Snowshoe, WV · 3 mi
262916a
Slatyfork, WV · 7 mi
249346a
Dunmore, WV · 8 mi
249546b
Marlinton, WV · 8 mi
249246b
Buckeye, WV · 12 mi
262946a
Valley Head, WV · 13 mi
262826a
Monterville, WV · 14 mi
249445b
Green Bank, WV · 15 mi

West Virginia planting zones →

Questions about 24927

What planting zone is ZIP code 24927?

ZIP code 24927 (Cass, WV) is in USDA hardiness zone 6a on the 2023 map: the coldest night of an average winter reaches −10 to −5 °F (−23.3 to −20.6 °C).

When is the last frost in Cass, WV?

The median last spring frost (32 °F) near 24927 is May 12; after May 29 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Snowshoe station.

When is the first frost in Cass, WV?

The median first fall frost near 24927 is October 7, giving a median frost-free growing season of 147 days.

When should I plant tomatoes in 24927?

Start tomato seeds indoors around Mar 17 – Mar 31 and set transplants outside around May 19 – Jun 2, one to three weeks after the median last frost.

How much rain and snow does 24927 get?

About 62.5 inches of precipitation a year and 145 inches of snowfall (NOAA 1991–2020 normals, Snowshoe station).

How hot do summers get in Cass, WV?

The average high peaks at 70 °F in July, with about 0 days a year at 90 °F or more.

What kind of soil does 24927 have?

The USDA soil survey maps Cateache at the center of ZIP 24927: slightly decomposed plant material, well drained, pH about 4.0 (strongly acidic).

Did spring come early in Cass, WV in 2026?

Spring leaf-out near 24927 came on Mar 16 in 2026, 22 days earlier than the 1991–2020 average (Apr 7), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Cass, WV?

Intermediate onions: the longest day near 24927 is 14 h 50 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 24927 change?

Yes. The 2012 USDA map put 24927 in zone 5b; the 2023 map puts it in zone 6a. The newer map uses 1991–2020 data and more weather stations.