Frost dates 2026–2027

Frost dates for Clayton, New Jersey

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Glassboro 2 NE, 5.1 mi away (close match).

Last spring frostApr 8
First fall frostNov 1
205 frost-free days
Last spring frostApr 81 year in 10 after Apr 22
First fall frostNov 11 year in 10 by Oct 18
Growing season205 daysbetween median 32°F dates
Hardiness zoneZone 7b5 to 10°F average extreme low

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Will it freeze in Clayton in the next 7 nights?

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

Tonight: forecast low 63°F. Above 36°F.

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

2 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 Clayton

The median first fall hard-freeze date (28°F) is November 11, from NOAA’s 1991–2020 Climate Normals at Glassboro 2 NE. 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 8 · Apr 22 · May 4 Oct 9 · Oct 21 · Nov 2 182 days
32°F freeze Mar 27 · Apr 8 · Apr 22 Oct 18 · Nov 1 · Nov 15 205 days
28°F hard freeze Mar 12 · Mar 27 · Apr 9 Oct 30 · Nov 11 · Nov 29 229 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00283291. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Glassboro 2 NE

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 Clayton, NJ come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Glassboro 2 NE (station USC00283291, elevation 100 ft), 5.1 mi from Clayton. 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 Clayton

CityDistanceLast spring frostFirst fall frost
Glassboro, NJ 3.1 mi Apr 8 Nov 1
Pitman, NJ 5.6 mi Apr 8 Nov 1
Pine Hill, NJ 9.9 mi Apr 8 Nov 1
Clementon, NJ 11 mi Apr 8 Nov 1
Berlin, NJ 11 mi Apr 28 Oct 15
Lindenwold, NJ 12 mi Apr 8 Nov 1
Stratford, NJ 12 mi Apr 8 Nov 1
Woodbury, NJ 12 mi Apr 2 Nov 10
Somerdale, NJ 13 mi Apr 12 Nov 1
Runnemede, NJ 13 mi Apr 8 Nov 1

Frequently asked questions

When is the last frost in Clayton?

On average, the last spring frost (32°F) in Clayton is around April 8. In about 1 year in 10 it comes after April 22, and in 9 years in 10 it comes after March 27.

When is the first frost in Clayton?

The first fall frost (32°F) usually arrives around November 1. There’s a 10% chance of a freeze by October 18 and a 90% chance by November 15.

Can it frost in Clayton 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 22.

What growing zone is Clayton?

Clayton is in USDA Plant Hardiness Zone 7b (average annual extreme minimum temperature 5 to 10°F), based on the 2023 USDA map for ZIP code 08312. See growing zones in New Jersey.

More: all New Jersey frost dates · New Jersey growing zones · frost vs. freeze