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Will it freeze in Williamsburg in the next 7 nights?
The earliest overnight low at or below 32°F in the available NWS frost forecast is Sat, Nov 7: 32°F (Sat, Nov 7, 6:00 PM EST to Sun, Nov 8, 6:00 AM EST).
Tonight: forecast low 44°F. Above 36°F.
NWS forecast period: Thu, Nov 5, 6:00 PM EST to Fri, Nov 6, 6:00 AM EST.
3 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.
- Tonight 44°F Above 36°F · Areas Of Fog
- Fri, Nov 6 39°F Above 36°F · Mostly Cloudy
- Sat, Nov 7 32°F Freeze · Partly Cloudy then Areas Of Frost
- Sun, Nov 8 33°F Frost possible · Mostly Clear then Areas Of Frost
- Mon, Nov 9 36°F Frost possible · Partly Cloudy
- Tue, Nov 10 37°F Above 36°F · Mostly Clear
- Wed, Nov 11 39°F Above 36°F · Mostly Clear
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 1, from NOAA’s 1991–2020 Climate Normals at Williamsburg. This is the 50% probability date, not a forecast for this year.
| Temperature | Last 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 | Apr 18 · Apr 30 · May 12 | Sep 30 · Oct 13 · Oct 25 | 164 days |
| 32°F freeze | Apr 8 · Apr 21 · May 5 | Oct 9 · Oct 22 · Nov 3 | 182 days |
| 28°F hard freeze | Mar 27 · Apr 11 · Apr 26 | Oct 19 · Nov 1 · Nov 14 | 203 days |
Average high temperature by month
1991–2020 normals at Williamsburg
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, KY come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Williamsburg (station USC00158709, elevation 940 ft), 0.9 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
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Corbin, KY | 14 mi | Apr 15 | Oct 25 |
| La Follette, TN | 25 mi | Apr 22 | Oct 25 |
| Middlesborough, KY | 26 mi | Apr 23 | Oct 19 |
| London, KY | 27 mi | Apr 15 | Oct 25 |
| Somerset, KY | 34 mi | Apr 5 | Oct 30 |
| Monticello, KY | 39 mi | Apr 18 | Oct 26 |
| Clinton, TN | 44 mi | Mar 31 | Nov 4 |
| Oak Ridge, TN | 54 mi | Apr 5 | Nov 1 |
| Knoxville, TN | 55 mi | Apr 11 | Oct 28 |
| Jefferson City, TN | 57 mi | Apr 24 | Oct 17 |
Frequently asked questions
When is the last frost in Williamsburg?
On average, the last spring frost (32°F) in Williamsburg is around April 21. In about 1 year in 10 it comes after May 5, and in 9 years in 10 it comes after April 8.
When is the first frost in Williamsburg?
The first fall frost (32°F) usually arrives around October 22. There’s a 10% chance of a freeze by October 9 and a 90% chance by November 3.
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 30.
What growing zone is Williamsburg?
Williamsburg is in USDA Plant Hardiness Zone 7a (average annual extreme minimum temperature 0 to 5°F), based on the 2023 USDA map for ZIP code 40769. See growing zones in Kentucky.
More: all Kentucky frost dates · Kentucky growing zones · frost vs. freeze