Frost dates 2026–2027

Frost dates for Williamston, North Carolina

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Williamston 1 E, 2.1 mi away (close match).

Last spring frostMar 20
First fall frostNov 12
239 frost-free days
Last spring frostMar 201 year in 10 after Apr 5
First fall frostNov 121 year in 10 by Oct 31
Growing season239 daysbetween median 32°F dates
Hardiness zoneZone 8a10 to 15°F average extreme low

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Will it freeze in Williamston in the next 7 nights?

No overnight lows at or below 32°F are forecast in Williamston 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 Williamston

The median first fall hard-freeze date (28°F) is November 26, from NOAA’s 1991–2020 Climate Normals at Williamston 1 E. 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 17 · Apr 2 · Apr 17 Oct 21 · Nov 1 · Nov 16 214 days
32°F freeze Mar 1 · Mar 20 · Apr 5 Oct 31 · Nov 12 · Dec 4 239 days
28°F hard freeze Feb 7 · Mar 5 · Mar 25 Nov 7 · Nov 26 · Dec 25 268 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00319440. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Williamston 1 E

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 Williamston, NC come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Williamston 1 E (station USC00319440, elevation 20 ft), 2.1 mi from Williamston. 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 Williamston

CityDistanceLast spring frostFirst fall frost
Washington, NC 19 mi Mar 22 Nov 15
Greenville, NC 24 mi Mar 27 Nov 8
Tarboro, NC 28 mi Mar 30 Nov 9
Winterville, NC 29 mi Mar 27 Nov 8
Ayden, NC 33 mi Mar 27 Nov 8
Rocky Mount, NC 42 mi Mar 31 Nov 7
Wilson, NC 49 mi Mar 22 Nov 12
Kinston, NC 49 mi Mar 25 Nov 11
Nashville, NC 50 mi Apr 1 Nov 5
New Bern, NC 52 mi Mar 23 Nov 15

Frequently asked questions

When is the last frost in Williamston?

On average, the last spring frost (32°F) in Williamston is around March 20. In about 1 year in 10 it comes after April 5, and in 9 years in 10 it comes after March 1.

When is the first frost in Williamston?

The first fall frost (32°F) usually arrives around November 12. There’s a 10% chance of a freeze by October 31 and a 90% chance by December 4.

Can it frost in Williamston 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 2.

What growing zone is Williamston?

Williamston 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 27892. See growing zones in North Carolina.

More: all North Carolina frost dates · North Carolina growing zones · frost vs. freeze