Harman US

Frost Dates for Brookhaven, WV

Last spring frost
Apr 23
First fall frost
Oct 24
Growing season
182 days
Hardiness zone
7a

In an average year around Brookhaven, WV, the last spring frost (32°F) is about Apr 23 and the first fall frost is about Oct 24, giving roughly a 182-day growing season. To be safe most years, wait until Apr 7 before setting out tender plants.

Last spring frost

Dates the last frost of spring typically ends. Plant tender crops after the risk has passed for your comfort level.

Last spring frost - Brookhaven, WV
Frost intensity Early (10%) Average (50%) Late (90%)
Light (36°F) May 23 May 4 Apr 19
Freeze (32°F) May 14 Apr 23 Apr 7
Hard (28°F) Apr 30 Apr 10 Mar 27
Severe (24°F) Apr 13 Mar 31 Mar 13
Show full probability table (all thresholds & percentiles)
°F 10% 20% 30% 40% 50% 60% 70% 80% 90%
36°F May 23 May 16 May 12 May 8 May 4 May 1 Apr 27 Apr 24 Apr 19
32°F May 14 May 6 May 1 Apr 27 Apr 23 Apr 20 Apr 17 Apr 13 Apr 7
28°F Apr 30 Apr 22 Apr 18 Apr 14 Apr 10 Apr 7 Apr 4 Mar 31 Mar 27
24°F Apr 13 Apr 7 Apr 4 Apr 1 Mar 31 Mar 27 Mar 24 Mar 19 Mar 13
20°F Apr 3 Mar 30 Mar 25 Mar 21 Mar 18 Mar 14 Mar 10 Mar 5 Feb 28
16°F Mar 24 Mar 18 Mar 14 Mar 10 Mar 6 Mar 3 Feb 28 Feb 21 Feb 12

First fall frost

Dates the first frost of fall typically arrives. Count back by a crop's days-to-maturity to know your planting cutoff.

First fall frost - Brookhaven, WV
Frost intensity Early (10%) Average (50%) Late (90%)
Light (36°F) Sep 30 Oct 13 Oct 25
Freeze (32°F) Oct 11 Oct 24 Nov 5
Hard (28°F) Oct 22 Nov 4 Nov 19
Severe (24°F) Nov 1 Nov 15 Dec 3
Show full probability table (all thresholds & percentiles)
°F 10% 20% 30% 40% 50% 60% 70% 80% 90%
36°F Sep 30 Oct 4 Oct 7 Oct 10 Oct 13 Oct 15 Oct 19 Oct 21 Oct 25
32°F Oct 11 Oct 15 Oct 18 Oct 21 Oct 24 Oct 27 Oct 29 Nov 1 Nov 5
28°F Oct 22 Oct 27 Oct 30 Nov 1 Nov 4 Nov 6 Nov 9 Nov 13 Nov 19
24°F Nov 1 Nov 5 Nov 8 Nov 12 Nov 15 Nov 19 Nov 22 Nov 28 Dec 3
20°F Nov 10 Nov 16 Nov 20 Nov 24 Nov 29 Dec 3 Dec 7 Dec 13 Dec 21
16°F Nov 22 Nov 30 Dec 5 Dec 10 Dec 14 Dec 19 Dec 24 Dec 28 Jan 5

Growing season is measured at 32°F with about 50% probability. Hardiness zone from the 2023 USDA map; frost normals from NOAA 1991-2020.

Where this data comes from

These dates are computed from the nearest official weather station with long-term records: Morgantown Hart Fld, Wv, about 3 miles away@if(!empty($station['elevation_ft'])), at 1,240 ft elevation. The further the station and the greater the elevation difference from your yard, the more your local frost timing can vary.

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How we calculate these dates

Frost and freeze dates come from the NOAA 1991–2020 U.S. Climate Normals, the National Oceanic and Atmospheric Administration's 30-year averages for each weather station. A date shown at the 50% level is the median: in half of years the frost falls on or before it. The 10% and 90% columns show the early and late ends of the range, so you can plant on the odds you're comfortable with. These are long-term averages, not a forecast for this year - always check your local outlook before planting.

Source: NOAA National Centers for Environmental Information, 1991–2020 Climate Normals (public domain). Harman is not affiliated with or endorsed by NOAA.

Frequently asked questions

When is the last frost in Brookhaven, WV?

On average, the last spring frost (32°F) around Brookhaven, WV is about Apr 23. In cooler years it can run later, so for a safer bet many gardeners wait until Apr 7.

When is the first frost in the fall?

The first fall frost around Brookhaven, WV typically arrives about Oct 24. Count back by a crop's days to maturity to find the latest date you can plant it.

When can I plant tomatoes and other tender crops?

Tender crops like tomatoes, peppers and basil are damaged by frost, so wait until the last spring frost has passed - around Apr 23 on average, or Apr 7 to be safe most years.

How long is the growing season here?

The frost-free growing season (between the last spring and first fall 32°F frost) is about 182 days in a typical year.

Are these dates a forecast for this year?

No. They are 30-year averages from the NOAA 1991–2020 Climate Normals, not a prediction for the current year. Use them for planning and always check your local weather forecast before planting or protecting crops.

Local weather for 26508 Planting calendar → West Virginia frost dates →

Data source: NOAA 1991–2020 Climate Normals · Page updated Aug 4, 2026