Frost dates 2026–2027

Frost dates for Weirton, West Virginia

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Steubenville, 3.9 mi away (close match).

Last spring frostApr 29
First fall frostOct 20
175 frost-free days
Last spring frostApr 291 year in 10 after May 15
First fall frostOct 201 year in 10 by Oct 6
Growing season175 daysbetween median 32°F dates
Hardiness zoneZone 6b−5 to 0°F average extreme low

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Will it freeze in Weirton in the next 7 nights?

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

Tonight: forecast low 47°F. Above 36°F.

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

4 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 Weirton

The median first fall hard-freeze date (28°F) is October 31, from NOAA’s 1991–2020 Climate Normals at Steubenville. 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 25 · May 8 · May 23 Sep 28 · Oct 9 · Oct 22 154 days
32°F freeze Apr 16 · Apr 29 · May 15 Oct 6 · Oct 20 · Nov 1 175 days
28°F hard freeze Apr 3 · Apr 18 · May 3 Oct 17 · Oct 31 · Nov 12 195 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00338025. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Steubenville

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 Weirton, WV come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Steubenville (station USC00338025, elevation 992 ft), 3.9 mi from Weirton. 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 Weirton

CityDistanceLast spring frostFirst fall frost
Toronto, OH 4.3 mi Apr 22 Oct 28
Steubenville, OH 5.6 mi Apr 29 Oct 20
East Liverpool, OH 16 mi Apr 22 Oct 28
Aliquippa, PA 22 mi Apr 8 Nov 8
Ambridge, PA 22 mi Apr 8 Nov 8
Canonsburg, PA 22 mi Apr 24 Oct 23
Coraopolis, PA 22 mi Apr 28 Oct 18
Martins Ferry, OH 22 mi Apr 20 Oct 29
Washington, PA 23 mi Apr 24 Oct 23
Wheeling, WV 24 mi Apr 20 Oct 29

Frequently asked questions

When is the last frost in Weirton?

On average, the last spring frost (32°F) in Weirton is around April 29. In about 1 year in 10 it comes after May 15, and in 9 years in 10 it comes after April 16.

When is the first frost in Weirton?

The first fall frost (32°F) usually arrives around October 20. There’s a 10% chance of a freeze by October 6 and a 90% chance by November 1.

Can it frost in Weirton 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 8.

What growing zone is Weirton?

Weirton is in USDA Plant Hardiness Zone 6b (average annual extreme minimum temperature −5 to 0°F), based on the 2023 USDA map for ZIP code 26062. See growing zones in West Virginia.

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