Harman US

Frost Dates for Keysville, VA

Last spring frost
Apr 7
First fall frost
Nov 1
Growing season
209 days
Hardiness zone
7b

In an average year around Keysville, VA, the last spring frost (32°F) is about Apr 7 and the first fall frost is about Nov 1, giving roughly a 209-day growing season. To be safe most years, wait until Mar 23 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 - Keysville, VA
Frost intensity Early (10%) Average (50%) Late (90%)
Light (36°F) May 11 Apr 20 Apr 4
Freeze (32°F) Apr 28 Apr 7 Mar 23
Hard (28°F) Apr 8 Mar 26 Mar 8
Severe (24°F) Mar 29 Mar 13 Feb 19
Show full probability table (all thresholds & percentiles)
°F 10% 20% 30% 40% 50% 60% 70% 80% 90%
36°F May 11 May 4 Apr 29 Apr 24 Apr 20 Apr 17 Apr 14 Apr 10 Apr 4
32°F Apr 28 Apr 18 Apr 13 Apr 10 Apr 7 Apr 4 Apr 1 Mar 28 Mar 23
28°F Apr 8 Apr 3 Apr 1 Mar 29 Mar 26 Mar 22 Mar 18 Mar 15 Mar 8
24°F Mar 29 Mar 24 Mar 20 Mar 17 Mar 13 Mar 9 Mar 4 Feb 28 Feb 19
20°F Mar 20 Mar 14 Mar 9 Mar 4 Feb 28 Feb 24 Feb 18 Feb 11 Feb 2
16°F Mar 9 Mar 2 Feb 25 Feb 18 Feb 12 Feb 6 Feb 1 Jan 26 Jan 14

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 - Keysville, VA
Frost intensity Early (10%) Average (50%) Late (90%)
Light (36°F) Oct 13 Oct 24 Nov 4
Freeze (32°F) Oct 22 Nov 1 Nov 14
Hard (28°F) Nov 1 Nov 12 Nov 29
Severe (24°F) Nov 8 Nov 25 Dec 15
Show full probability table (all thresholds & percentiles)
°F 10% 20% 30% 40% 50% 60% 70% 80% 90%
36°F Oct 13 Oct 17 Oct 20 Oct 22 Oct 24 Oct 26 Oct 28 Oct 31 Nov 4
32°F Oct 22 Oct 25 Oct 28 Oct 30 Nov 1 Nov 4 Nov 6 Nov 9 Nov 14
28°F Nov 1 Nov 3 Nov 5 Nov 8 Nov 12 Nov 14 Nov 17 Nov 22 Nov 29
24°F Nov 8 Nov 13 Nov 16 Nov 20 Nov 25 Nov 29 Dec 2 Dec 7 Dec 15
20°F Nov 19 Nov 27 Dec 2 Dec 6 Dec 11 Dec 17 Dec 24 Dec 30 Jan 8
16°F Dec 4 Dec 12 Dec 20 Dec 25 Dec 31 Jan 4 Jan 10 Jan 17 Jan 28

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: Greenbay 3 Ne, Va, about 7.4 miles away@if(!empty($station['elevation_ft'])), at 500 ft elevation. The further the station and the greater the elevation difference from your yard, the more your local frost timing can vary.

@endif
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 Keysville, VA?

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

When is the first frost in the fall?

The first fall frost around Keysville, VA typically arrives about Nov 1. 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 7 on average, or Mar 23 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 209 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 23954 Planting calendar → Virginia frost dates →

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