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Will it freeze in Washington in the next 7 nights?
The earliest overnight low at or below 32°F in the available NWS frost forecast is Wed, Nov 11: 31°F (Wed, Nov 11, 6:00 PM EST to Thu, Nov 12, 6:00 AM EST).
Tonight: forecast low 59°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.
- Tonight 59°F Above 36°F · Light Rain
- Fri, Nov 6 46°F Above 36°F · Partly Cloudy
- Sat, Nov 7 41°F Above 36°F · Slight Chance Light Rain then Partly Cloudy
- Sun, Nov 8 36°F Frost possible · Mostly Clear
- Mon, Nov 9 34°F Frost possible · Mostly Clear
- Tue, Nov 10 35°F Frost possible · Mostly Clear
- Wed, Nov 11 31°F Freeze · Partly Cloudy
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 Washington
The median first fall hard-freeze date (28°F) is October 29, from NOAA’s 1991–2020 Climate Normals at Belvidere Brg. 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 26 · May 12 · May 29 | Sep 25 · Oct 6 · Oct 20 | 147 days |
| 32°F freeze | Apr 15 · Apr 30 · May 18 | Oct 3 · Oct 18 · Nov 1 | 168 days |
| 28°F hard freeze | Apr 2 · Apr 16 · May 5 | Oct 14 · Oct 29 · Nov 10 | 195 days |
Average high temperature by month
1991–2020 normals at Belvidere Brg
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 Washington, NJ come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Belvidere Brg (station USC00280734, elevation 263 ft), 7.1 mi from Washington. 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 Washington
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Hackettstown, NJ | 11 mi | Apr 25 | Oct 19 |
| Phillipsburg, NJ | 11 mi | Apr 18 | Oct 25 |
| Easton, PA | 13 mi | Apr 18 | Oct 25 |
| Bangor, PA | 14 mi | Apr 30 | Oct 18 |
| Wilson, PA | 14 mi | Apr 18 | Oct 25 |
| Nazareth, PA | 17 mi | Apr 18 | Oct 25 |
| Stroudsburg, PA | 19 mi | May 1 | Oct 12 |
| East Stroudsburg, PA | 20 mi | May 1 | Oct 12 |
| Bernardsville, NJ | 21 mi | Apr 26 | Oct 18 |
| Mount Arlington, NJ | 21 mi | Apr 25 | Oct 19 |
Frequently asked questions
When is the last frost in Washington?
On average, the last spring frost (32°F) in Washington is around April 30. In about 1 year in 10 it comes after May 18, and in 9 years in 10 it comes after April 15.
When is the first frost in Washington?
The first fall frost (32°F) usually arrives around October 18. There’s a 10% chance of a freeze by October 3 and a 90% chance by November 1.
Can it frost in Washington 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 12.
What growing zone is Washington?
Washington 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 07882. See growing zones in New Jersey.
More: all New Jersey frost dates · New Jersey growing zones · frost vs. freeze