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USDA Hardiness Zone 6a

Frost Dates for 26287 — Parsons, West Virginia

NOAA 1991–2020 normals from Parsons 3 SE, WV (1,775 ft), 5 miles southeast.

Updated

In Parsons, the last spring frost (32°F) is around April 24 in half of years and has passed by May 11 in nine years out of ten. The first fall frost comes around October 24, as early as October 11 one year in ten, leaving a typical freeze-free season of 182 days (NOAA, Parsons 3 SE, WV).

Last spring frost
April 24

50% probability

First fall frost
October 24

50% probability

Growing season
182 days

freeze-free, 50%

Hardiness zone
6a

-10 to -5°F (-23.3 to -20.6°C) coldest night

First snow
November 21

median, 1991–2020

Last snow
April 6

median, 1991–2020

Winters with snow
100%

27 of 27 observed

Snow per year
55.3"

NOAA normal

Frost risk by date in Parsons

Half of springs at Parsons 3 SE, WV see their last 32°F night by April 24; only one in ten is past it by April 8, and one in ten still has one after May 11. Planting tender crops after April 30 leaves a 30% risk of a frost on them, after May 4 20%, and after May 11 10%. The 17 days between the even-odds date and the one-in-ten date is narrower than at 61% of the 84 West Virginia stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 24 in half of years, as early as October 11 one year in ten, and holds off past November 5 one year in ten. A hard freeze of 28°F follows 8 days later, around November 1; in spring the one-in-ten date for 28°F is April 30, 11 days before the 32°F one. The freeze-free season lasts 182 days in a typical year, longer than at 63% of the 84 West Virginia stations; it reaches 203 days one year in ten and falls short of 160 one year in ten. On average 133 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 4, and return around October 15. Severe cold of 16°F or below comes every winter, usually between December 7 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 20Apr 25Apr 28May 1May 4May 7May 12May 16May 21
32°FApr 8Apr 14Apr 18Apr 21Apr 24Apr 27Apr 30May 4May 11
28°FMar 26Mar 31Apr 3Apr 7Apr 10Apr 14Apr 18Apr 22Apr 30
24°FMar 12Mar 18Mar 22Mar 26Mar 30Apr 1Apr 4Apr 7Apr 13
20°FFeb 28Mar 5Mar 9Mar 14Mar 17Mar 20Mar 24Mar 29Apr 3
16°FFeb 13Feb 23Feb 28Mar 3Mar 7Mar 10Mar 14Mar 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°FOct 4Oct 8Oct 11Oct 13Oct 15Oct 18Oct 21Oct 23Oct 27
32°FOct 11Oct 15Oct 19Oct 22Oct 24Oct 27Oct 30Nov 1Nov 5
28°FOct 20Oct 25Oct 28Oct 31Nov 1Nov 4Nov 7Nov 11Nov 16
24°FOct 30Nov 2Nov 6Nov 9Nov 12Nov 15Nov 18Nov 23Dec 1
20°FNov 7Nov 12Nov 15Nov 20Nov 24Nov 29Dec 1Dec 6Dec 16
16°FNov 16Nov 24Nov 29Dec 2Dec 7Dec 12Dec 18Dec 23Dec 30

Freeze probabilities 1991–2020 at Parsons 3 SE, 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 26287 →Compare Parsons with another place →

Weather by month in Parsons

July is the warmest month at Parsons 3 SE, WV, averaging 83°F by day and 63°F at night; January is the coldest at 39°F and 22°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 29% of years.

Warmth for growing adds up to 3,223 growing degree days a year (base 50°F), fewer than at 58% of the 84 West Virginia stations. 35% of them (1,137) have built up by the end of June, and July adds the most, 710. Precipitation totals 55.1 inches a year, most in June (6.0") and least in November (3.6"); May to September bring 48% of it.

Monthly normals 1991–2020 at Parsons 3 SE, WV
MonthHigh °FLow °FPrecip. in32°F nightNights ≤ 32°FGDD 50°F
Jan39223.8100%266
Feb43243.9100%248
Mar52314.5100%2139
Apr64404.697%11153
May73505.829%1364
Jun80586.00%0567
Jul83635.80%0710
Aug82624.80%0679
Sep76554.00%0466
Oct65433.976%7182
Nov53333.6100%1939
Dec43274.4100%2511

Monthly normals 1991–2020 at Parsons 3 SE, WV (1,775 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, Rowlesburg 1, WV, 14 miles north of Parsons and 352 feet lower, has a last frost 4 days later (April 28), a first frost 1 day earlier (October 23), a season 3 days shorter.

Frost dates for 26444 (Tunnelton) →

When it snows in Parsons, West Virginia

The first measurable snow (0.1 inch or more) in Parsons usually arrives around November 21, and the last of the season around April 6. Those are the middle dates across the winters of 1991–2020 at Parsons 3 SE, WV, 5.2 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 18 days after the last snow.

Planting calendar for 26287

What to do and when, from the 50% frost dates for Parsons, West Virginia
WhenWhat to do
February 13 – February 27Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
February 27 – March 13Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
March 27 – April 10Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
April 24 onwardTransplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast.
by August 1Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by October 10Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
October 24 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 26287 is 5 miles from Parsons 3 SE, WV, which stands at 1,775 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 26287 in zone 6a, the band where the coldest night of the year averaged -10 to -5°F (-23.3 to -20.6°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.

Other zone 6a places in West Virginia