Frost dates 2026–2027

Frost dates for Williamsburg, Virginia

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Williamsburg 2 N, 2.2 mi away (close match).

Last spring frostMar 31
First fall frostNov 10
225 frost-free days
Last spring frostMar 311 year in 10 after Apr 14
First fall frostNov 101 year in 10 by Oct 29
Growing season225 daysbetween median 32°F dates
Hardiness zoneZone 8a10 to 15°F average extreme low

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Will it freeze in Williamsburg in the next 7 nights?

No overnight lows at or below 32°F are forecast in Williamsburg during the next 7 nights in the available NWS frost forecast.

Tonight: forecast low 66°F. Above 36°F.

NWS forecast period: Thu, Nov 5, 6:00 PM EST to Fri, Nov 6, 6:00 AM EST.

No nights at or below 36°F in the National Weather Service forecast for the next 7 nights.

Overnight lows from the National Weather Service forecast for this location. This covers the available forecast window, not the first freeze of the whole season. Frost can form above 32°F on clear, calm nights.

Frost and freeze probabilities

Freeze dates shift from year to year. Spring percentages describe the chance of a freeze after the stated date; fall percentages describe the chance of a freeze by that date. The 10% spring date is the cautious one: a later freeze happens about 1 year in 10.

These dates describe historical probabilities, not this year’s forecast or the earliest and latest possible freezes. Different weather stations or probability thresholds can produce different published dates for the same city.

Average first hard freeze in Williamsburg

The median first fall hard-freeze date (28°F) is November 23, from NOAA’s 1991–2020 Climate Normals at Williamsburg 2 N. This is the 50% probability date, not a forecast for this year.

TemperatureLast spring date
90% · 50% · 10% chance of a later freeze
First fall date
10% · 50% · 90% chance of an earlier freeze
Season
36°F frost possible Mar 28 · Apr 12 · May 1 Oct 21 · Nov 1 · Nov 12 203 days
32°F freeze Mar 15 · Mar 31 · Apr 14 Oct 29 · Nov 10 · Nov 26 225 days
28°F hard freeze Feb 28 · Mar 20 · Apr 4 Nov 7 · Nov 23 · Dec 13 252 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00449151. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Williamsburg 2 N

Average low temperature by month

Months with lows near or below freezing carry frost risk

Where these frost dates come from

The frost dates for Williamsburg, VA come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Williamsburg 2 N (station USC00449151, elevation 70 ft), 2.2 mi from Williamsburg. Local conditions (valleys, hilltops, distance to water, city heat) can shift frost dates by days or weeks. The hardiness zone is from the 2023 USDA Plant Hardiness Zone Map (USDA ARS and Oregon State University PRISM). See our methodology.

Frost dates near Williamsburg

CityDistanceLast spring frostFirst fall frost
Newport News, VA 17 mi Apr 1 Nov 9
Smithfield, VA 21 mi Apr 1 Nov 9
Poquoson, VA 24 mi Mar 24 Nov 15
Hampton, VA 27 mi Mar 24 Nov 15
Hopewell, VA 32 mi Mar 31 Nov 6
Portsmouth, VA 34 mi Mar 23 Nov 16
Norfolk, VA 35 mi Mar 16 Nov 26
Colonial Heights, VA 38 mi Apr 3 Nov 3
Petersburg, VA 38 mi Apr 3 Nov 3
Suffolk, VA 40 mi Mar 27 Nov 15

Frequently asked questions

When is the last frost in Williamsburg?

On average, the last spring frost (32°F) in Williamsburg is around March 31. In about 1 year in 10 it comes after April 14, and in 9 years in 10 it comes after March 15.

When is the first frost in Williamsburg?

The first fall frost (32°F) usually arrives around November 10. There’s a 10% chance of a freeze by October 29 and a 90% chance by November 26.

Can it frost in Williamsburg after the last frost date?

Yes. Frost can form on clear, calm nights even when the air stays above 32°F. Temperatures of 36°F or lower, cold enough for frost on exposed plants, have a 50% chance of occurring after April 12.

What growing zone is Williamsburg?

Williamsburg is in USDA Plant Hardiness Zone 8a (average annual extreme minimum temperature 10 to 15°F), based on the 2023 USDA map for ZIP code 23185. See growing zones in Virginia.

More: all Virginia frost dates · Virginia growing zones · frost vs. freeze