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USDA Hardiness Zone 6b

Frost Dates for 26034 — Chester, West Virginia

NOAA 1991–2020 normals from New Cumberland L/D, WV (675 ft), 7 miles southwest.

Updated

In Chester, the last spring frost (32°F) is around April 22 in half of years and has passed by May 8 in nine years out of ten. The first fall frost comes around October 28, as early as October 13 one year in ten, leaving a typical freeze-free season of 186 days (NOAA, New Cumberland L/D, WV).

Last spring frost
April 22

50% probability

First fall frost
October 28

50% probability

Growing season
186 days

freeze-free, 50%

Hardiness zone
6b

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

First snow
December 15

median, 1991–2020

Last snow
March 3

median, 1991–2020

Winters with snow
78%

14 of 18 observed

Snow per year
—

NOAA normal

Frost risk by date in Chester

Half of springs at New Cumberland L/D, WV see their last 32°F night by April 22; only one in ten is past it by April 11, and one in ten still has one after May 8. Planting tender crops after April 28 leaves a 30% risk of a frost on them, after May 1 20%, and after May 8 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 28 in half of years, as early as October 13 one year in ten, and holds off past November 10 one year in ten. A hard freeze of 28°F follows 9 days later, around November 6; in spring the one-in-ten date for 28°F is April 21, 17 days before the 32°F one. The freeze-free season lasts 186 days in a typical year, longer than at 74% of the 84 West Virginia stations; it reaches 204 days one year in ten and falls short of 166 one year in ten. On average 112 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 2, and return around October 17. Severe cold of 16°F or below comes every winter, usually between December 14 and March 11.

Spring: the chance of another night this cold after the date
Low90%80%70%60%50%40%30%20%10%
36°FApr 20Apr 23Apr 27Apr 30May 2May 5May 9May 13May 20
32°FApr 11Apr 15Apr 17Apr 19Apr 22Apr 25Apr 28May 1May 8
28°FMar 30Apr 2Apr 4Apr 7Apr 10Apr 13Apr 16Apr 18Apr 21
24°FMar 17Mar 22Mar 26Mar 30Apr 1Apr 2Apr 5Apr 8Apr 13
20°FMar 6Mar 11Mar 15Mar 18Mar 21Mar 24Mar 27Mar 31Apr 3
16°FFeb 21Feb 28Mar 4Mar 8Mar 11Mar 14Mar 18Mar 21Mar 25
Fall: the chance the first night this cold has come by the date
Low10%20%30%40%50%60%70%80%90%
36°FOct 3Oct 6Oct 10Oct 14Oct 17Oct 20Oct 22Oct 26Oct 30
32°FOct 13Oct 19Oct 22Oct 25Oct 28Oct 31Nov 2Nov 5Nov 10
28°FOct 24Oct 29Nov 1Nov 4Nov 6Nov 9Nov 12Nov 15Nov 21
24°FNov 2Nov 7Nov 11Nov 14Nov 17Nov 21Nov 25Nov 30Dec 5
20°FNov 12Nov 18Nov 23Nov 27Dec 1Dec 4Dec 7Dec 13Dec 21
16°FNov 25Dec 1Dec 6Dec 10Dec 14Dec 19Dec 23Dec 28Jan 3

Freeze probabilities 1991–2020 at New Cumberland L/D, 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 26034 →Compare Chester with another place →

Weather by month in Chester

July is the warmest month at New Cumberland L/D, WV, averaging 84°F by day and 63°F at night; January is the coldest at 37°F and 21°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 21% of years.

Warmth for growing adds up to 3,185 growing degree days a year (base 50°F), fewer than at 61% of the 84 West Virginia stations. 34% of them (1,070) have built up by the end of June, and July adds the most, 727.

Monthly normals 1991–2020 at New Cumberland L/D, WV
MonthHigh °FLow °F32°F nightNights ≤ 32°FGDD 50°F
Jan3721100%262
Feb4022100%243
Mar4929100%2026
Apr624099%6125
May724921%1341
Jun80590%0573
Jul84630%0727
Aug82620%0694
Sep76560%0478
Oct644461%1181
Nov5234100%1231
Dec4127100%234

Monthly normals 1991–2020 at New Cumberland L/D, WV (675 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, Montgomery L&D, PA, 9 miles east of Chester, has a last frost 6 days later (April 28), a first frost 2 days earlier (October 26), a season 8 days shorter.

Frost dates for 15009 (Beaver) →

When it snows in Chester, West Virginia

The first measurable snow (0.1 inch or more) in Chester usually arrives around December 15, and the last of the season around March 3. Those are the middle dates across the winters of 1991–2020 at New Cumberland L/D, WV, 6.8 miles away: half of years saw snow earlier, half later. Snow fell in 78% of those winters. The last 32°F night of spring typically comes 50 days after the last snow.

Planting calendar for 26034

What to do and when, from the 50% frost dates for Chester, West Virginia
WhenWhat to do
February 11 – February 25Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
February 25 – March 11Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
March 25 – April 8Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
April 22 onwardTransplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast.
by August 5Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by October 14Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
October 28 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 26034 is 7 miles from New Cumberland L/D, WV, which stands at 675 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 4 other ZIP codes share the station; its figures are presented in full for 43920 (East Liverpool). The 2023 USDA Plant Hardiness Zone Map lists ZIP 26034 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