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Will it freeze in Port Jervis in the next 7 nights?
The earliest overnight low at or below 32°F in the available NWS frost forecast is Mon, Nov 9: 32°F (Mon, Nov 9, 6:00 PM EST to Tue, Nov 10, 6:00 AM EST).
Tonight: forecast low 56°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 56°F Above 36°F · Light Rain Likely
- Fri, Nov 6 45°F Above 36°F · Partly Cloudy
- Sat, Nov 7 40°F Above 36°F · Chance Light Rain
- Sun, Nov 8 36°F Frost possible · Mostly Clear
- Mon, Nov 9 32°F Freeze · Mostly Clear
- Tue, Nov 10 33°F Frost possible · Mostly Clear
- Wed, Nov 11 28°F Hard 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 Port Jervis
The median first fall hard-freeze date (28°F) is October 24, from NOAA’s 1991–2020 Climate Normals at Port Jervis. 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 | May 1 · May 16 · May 30 | Sep 19 · Oct 2 · Oct 14 | 138 days |
| 32°F freeze | Apr 22 · May 5 · May 19 | Sep 28 · Oct 10 · Oct 29 | 158 days |
| 28°F hard freeze | Apr 8 · Apr 23 · May 8 | Oct 6 · Oct 24 · Nov 7 | 183 days |
Average high temperature by month
1991–2020 normals at Port Jervis
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 Port Jervis, NY come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Port Jervis (station USC00306774, elevation 580 ft), 0.7 mi from Port Jervis. 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 Port Jervis
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Middletown, NY | 14 mi | Apr 21 | Oct 22 |
| Goshen, NY | 19 mi | Apr 21 | Oct 22 |
| Monticello, NY | 19 mi | May 7 | Oct 7 |
| Franklin, NJ | 19 mi | May 1 | Oct 12 |
| Warwick, NY | 19 mi | May 1 | Oct 12 |
| Newton, NJ | 23 mi | Apr 24 | Oct 16 |
| Monroe, NY | 27 mi | Apr 10 | Nov 1 |
| Kiryas Joel, NY | 27 mi | Apr 10 | Nov 1 |
| Washingtonville, NY | 28 mi | May 1 | Oct 11 |
| Ringwood, NJ | 29 mi | Apr 19 | Oct 23 |
Frequently asked questions
When is the last frost in Port Jervis?
On average, the last spring frost (32°F) in Port Jervis is around May 5. In about 1 year in 10 it comes after May 19, and in 9 years in 10 it comes after April 22.
When is the first frost in Port Jervis?
The first fall frost (32°F) usually arrives around October 10. There’s a 10% chance of a freeze by September 28 and a 90% chance by October 29.
Can it frost in Port Jervis 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 16.
What growing zone is Port Jervis?
Port Jervis 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 18336. See growing zones in New York.
More: all New York frost dates · New York growing zones · frost vs. freeze