Frost dates 2026–2027

Frost dates for Princeton, West Virginia

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Athens, 5.3 mi away (close match).

Last spring frostApr 30
First fall frostOct 10
161 frost-free days
Last spring frostApr 301 year in 10 after May 19
First fall frostOct 101 year in 10 by Sep 27
Growing season161 daysbetween median 32°F dates
Hardiness zoneZone 7a0 to 5°F average extreme low

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Will it freeze in Princeton in the next 7 nights?

The earliest overnight low at or below 32°F in the available NWS frost forecast is Sat, Nov 7: 31°F (Sat, Nov 7, 6:00 PM EST to Sun, Nov 8, 6:00 AM EST).

Tonight: forecast low 45°F. Above 36°F.

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

5 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.

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 Princeton

The median first fall hard-freeze date (28°F) is October 19, from NOAA’s 1991–2020 Climate Normals at Athens. 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 Apr 24 · May 9 · May 26 Sep 20 · Oct 3 · Oct 14 144 days
32°F freeze Apr 14 · Apr 30 · May 19 Sep 27 · Oct 10 · Oct 22 161 days
28°F hard freeze Apr 3 · Apr 16 · May 11 Oct 4 · Oct 19 · Nov 1 182 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00460355. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Athens

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 Princeton, WV come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Athens (station USC00460355, elevation 2,495 ft), 5.3 mi from Princeton. 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 Princeton

CityDistanceLast spring frostFirst fall frost
Bluefield, WV 9.9 mi Apr 30 Oct 15
Beckley, WV 28 mi May 6 Oct 10
Pulaski, VA 29 mi Apr 25 Oct 17
Wytheville, VA 29 mi Apr 25 Oct 18
Radford, VA 34 mi Apr 26 Oct 18
Blacksburg, VA 38 mi Apr 24 Oct 19
Christiansburg, VA 41 mi Apr 19 Oct 23
Oak Hill, WV 42 mi Apr 21 Oct 19
Marion, VA 43 mi Apr 23 Oct 20
Richlands, VA 44 mi Apr 27 Oct 18

Frequently asked questions

When is the last frost in Princeton?

On average, the last spring frost (32°F) in Princeton is around April 30. In about 1 year in 10 it comes after May 19, and in 9 years in 10 it comes after April 14.

When is the first frost in Princeton?

The first fall frost (32°F) usually arrives around October 10. There’s a 10% chance of a freeze by September 27 and a 90% chance by October 22.

Can it frost in Princeton 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 May 9.

What growing zone is Princeton?

Princeton 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 24740. See growing zones in West Virginia.

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