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USDA Hardiness Zone 6b

Frost Dates for 26041 — Moundsville, West Virginia

NOAA 1991–2020 normals from Moundsville, WV (620 ft), 1 miles southwest.

Updated

In Moundsville, the last spring frost (32°F) is around April 26 in half of years and has passed by May 12 in nine years out of ten. The first fall frost comes around October 21, as early as October 8 one year in ten, leaving a typical freeze-free season of 177 days (NOAA, Moundsville, WV).

Last spring frost
April 26

50% probability

First fall frost
October 21

50% probability

Growing season
177 days

freeze-free, 50%

Hardiness zone
6b

-5 to 0°F (-20.6 to -17.8°C) coldest night

First snow
December 16

median, 1991–2020

Last snow
March 6

median, 1991–2020

Winters with snow
100%

22 of 22 observed

Snow per year
15.8"

NOAA normal

Frost risk by date in Moundsville

Half of springs at Moundsville, WV see their last 32°F night by April 26; only one in ten is past it by April 15, and one in ten still has one after May 12. Planting tender crops after May 2 leaves a 30% risk of a frost on them, after May 6 20%, and after May 12 10%. The 16 days between the even-odds date and the one-in-ten date is narrower than at 81% of the 84 West Virginia stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 21 in half of years, as early as October 8 one year in ten, and holds off past November 2 one year in ten. A hard freeze of 28°F follows 11 days later, around November 1; in spring the one-in-ten date for 28°F is May 1, 11 days before the 32°F one. The freeze-free season lasts 177 days in a typical year, shorter than at 56% of the 84 West Virginia stations; it reaches 195 days one year in ten and falls short of 157 one year in ten. On average 113 nights a year drop to 32°F or below. Nights of 36°F, when frost can still settle on leaves in low, open spots, continue 10 days longer, to about May 6, and return around October 12. Severe cold of 16°F or below comes every winter, usually between December 8 and March 7.

Spring: the chance of another night this cold after the date
Low90%80%70%60%50%40%30%20%10%
36°FApr 22Apr 26Apr 30May 2May 6May 9May 12May 17May 22
32°FApr 15Apr 18Apr 21Apr 23Apr 26Apr 29May 2May 6May 12
28°FMar 31Apr 5Apr 9Apr 12Apr 15Apr 18Apr 20Apr 24May 1
24°FMar 17Mar 24Mar 28Mar 31Apr 2Apr 4Apr 7Apr 11Apr 15
20°FMar 4Mar 9Mar 13Mar 17Mar 20Mar 24Mar 28Mar 31Apr 4
16°FFeb 19Feb 27Mar 2Mar 4Mar 7Mar 12Mar 16Mar 19Mar 25
Fall: the chance the first night this cold has come by the date
Low10%20%30%40%50%60%70%80%90%
36°FSep 30Oct 4Oct 7Oct 9Oct 12Oct 14Oct 16Oct 20Oct 23
32°FOct 8Oct 13Oct 16Oct 19Oct 21Oct 24Oct 26Oct 29Nov 2
28°FOct 18Oct 22Oct 26Oct 29Nov 1Nov 2Nov 5Nov 9Nov 12
24°FOct 29Nov 2Nov 4Nov 8Nov 11Nov 13Nov 16Nov 20Nov 26
20°FNov 7Nov 11Nov 15Nov 19Nov 23Nov 27Dec 1Dec 6Dec 12
16°FNov 15Nov 23Nov 29Dec 2Dec 8Dec 12Dec 17Dec 23Dec 30

Freeze probabilities 1991–2020 at Moundsville, WV, from NOAA NCEI U.S. Climate Normals. Where a temperature is reached in fewer than 99.5% of years, the dates describe only the years that reach it. Not a forecast.

Frost risk on any date in 26041 →Compare Moundsville with another place →

Frost risk through the year in Moundsville

Frost curve for Moundsville, West Virginia (Moundsville, WV, NOAA 1991–2020): the chance of another 32°F night falls from 90% on April 15 to 50% on April 26 and 10% on May 12; the chance that the first fall one has come rises from 10% on October 8 to 50% on October 21 and 90% on November 2.

In Moundsville, the spring curve drops under 10% on May 12 and the fall curve passes 10% on October 8, 149 days later; that gap is longer than at 54% of the 84 West Virginia stations with frost dates. The spring risk falls from 90% to 10% over 27 days (April 15 to May 12) and the fall risk climbs from 10% to 90% over 25 days (October 8 to November 2): both ends of the season vary about as much. At Wheeling, WV, 10 miles north, the same gap runs from May 6 to October 15, 13 days longer.

Chance of a frost after each planting date in Moundsville
Planted onAnother 32°F night28°F night
Apr 12over 90%60%
Apr 1977%35%
Apr 2650% date50%17%
May 328%under 10%
May 1013%under 10%
May 17under 10%under 10%

Weather by month in Moundsville

July is the warmest month at Moundsville, WV, averaging 86°F by day and 62°F at night; January is the coldest at 39°F and 20°F. A freezing night is all but certain in every month from November to April (a 90% chance or more). From June to September the chance of a 32°F night stays under 10% each month. In spring, May still brings one in 34% of years.

Warmth for growing adds up to 3,280 growing degree days a year (base 50°F), more than at 50% of the 84 West Virginia stations. 35% of them (1,146) have built up by the end of June, and July adds the most, 739. Precipitation totals 46.2 inches a year, most in June (4.9") and least in February (3.1"); May to September bring 47% of it.

Monthly normals 1991–2020 at Moundsville, WV
MonthHigh °FLow °FPrecip. in32°F nightNights ≤ 32°FGDD 50°F
Jan39203.8100%254
Feb43213.1100%235
Mar52293.9100%1832
Apr65383.798%6140
May75494.534%<1371
Jun82584.90%0596
Jul86624.50%0739
Aug85613.80%0699
Sep79533.91%0478
Oct67423.286%2178
Nov54313.2100%1432
Dec44253.7100%237

Monthly normals 1991–2020 at Moundsville, WV (620 ft), NOAA NCEI. "32°F night": chance of at least one in the month. GDD: growing degree days, base 50°F.

Compared with the next station

The nearest other station, Wheeling, WV, 10 miles north of Moundsville, has a last frost 6 days earlier (April 20), a first frost 8 days later (October 29), a season 15 days longer.

Frost dates for 26003 (Wheeling) →

When it snows in Moundsville, West Virginia

The first measurable snow (0.1 inch or more) in Moundsville usually arrives around December 16, and the last of the season around March 6. Those are the middle dates across the winters of 1991–2020 at Moundsville, WV, 1.1 miles away: half of years saw snow earlier, half later. Every one of those winters saw snow. The last 32°F night of spring typically comes 51 days after the last snow.

Planting calendar for 26041

What to do and when, from the 50% frost dates for Moundsville, West Virginia
WhenWhat to do
February 15 – March 1Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
March 1 – March 15Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
March 29 – April 12Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
April 26 onwardTransplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast.
by July 29Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by October 7Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
October 21 onwardPlant garlic, mulch beds, lift tender bulbsGarlic wants a cold spell; bare soil loses structure over winter.

The weeks before and after the 50% dates are general rules of thumb, not NOAA figures; a seed packet gives the timing for each variety.

Where these figures come from

ZIP 26041 is 1 mile from Moundsville, WV, which stands at 620 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 4 other ZIP codes share the station. The 2023 USDA Plant Hardiness Zone Map lists ZIP 26041 in zone 6b, the band where the coldest night of the year averaged -5 to 0°F (-20.6 to -17.8°C) over 1991–2020; a zone describes winter lows, not frost dates.

Frost dates across West Virginia →

Hardiness zone and temperature range: USDA Plant Hardiness Zone Map 2023 (USDA-ARS, Oregon State University), ZIP-code listing, unchanged. °C converted from °F by this site.

Thirty-year averages, not a forecast: check the forecast before planting out. How stations are matched and which pages are offered to search engines: methodology.

ZIP codes measured at the same station

Other zone 6b places in West Virginia