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Will it freeze in Palmyra in the next 7 nights?
No overnight lows at or below 32°F are forecast in Palmyra during the next 7 nights in the available NWS frost forecast.
Tonight: forecast low 62°F. Above 36°F.
NWS forecast period: Thu, Nov 5, 6:00 PM EST to Fri, Nov 6, 6:00 AM EST.
No nights at or below 36°F in the National Weather Service forecast for the next 7 nights.
- Tonight 62°F Above 36°F · Light Rain Likely
- Fri, Nov 6 51°F Above 36°F · Partly Cloudy
- Sat, Nov 7 44°F Above 36°F · Partly Cloudy
- Sun, Nov 8 42°F Above 36°F · Mostly Clear
- Mon, Nov 9 40°F Above 36°F · Mostly Clear
- Tue, Nov 10 40°F Above 36°F · Mostly Clear
- Wed, Nov 11 37°F Above 36°F · 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 Palmyra
The median first fall hard-freeze date (28°F) is November 10, from NOAA’s 1991–2020 Climate Normals at Pennsauken 1N. 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 14 · Apr 27 · May 15 | Oct 6 · Oct 19 · Nov 1 | 174 days |
| 32°F freeze | Apr 1 · Apr 15 · May 1 | Oct 16 · Oct 31 · Nov 12 | 199 days |
| 28°F hard freeze | Mar 17 · Apr 1 · Apr 14 | Oct 31 · Nov 10 · Nov 24 | 223 days |
Average high temperature by month
1991–2020 normals at Pennsauken 1N
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 Palmyra, NJ come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Pennsauken 1N (station USC00286864, elevation 46 ft), 2.7 mi from Palmyra. 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 Palmyra
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Philadelphia, PA | 5.0 mi | Mar 30 | Nov 17 |
| Camden, NJ | 6.2 mi | Mar 30 | Nov 17 |
| Collingswood, NJ | 6.2 mi | Apr 15 | Oct 31 |
| Haddonfield, NJ | 7.5 mi | Apr 15 | Oct 31 |
| Audubon, NJ | 8.1 mi | Apr 15 | Oct 31 |
| Haddon Heights, NJ | 8.7 mi | Apr 15 | Oct 31 |
| Gloucester City, NJ | 8.7 mi | Mar 30 | Nov 17 |
| Barrington, NJ | 9.3 mi | Apr 15 | Oct 31 |
| Bellmawr, NJ | 9.9 mi | Apr 2 | Nov 10 |
| Runnemede, NJ | 11 mi | Apr 8 | Nov 1 |
Frequently asked questions
When is the last frost in Palmyra?
On average, the last spring frost (32°F) in Palmyra is around April 15. In about 1 year in 10 it comes after May 1, and in 9 years in 10 it comes after April 1.
When is the first frost in Palmyra?
The first fall frost (32°F) usually arrives around October 31. There’s a 10% chance of a freeze by October 16 and a 90% chance by November 12.
Can it frost in Palmyra 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 27.
What growing zone is Palmyra?
Palmyra 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 08065. See growing zones in New Jersey.
More: all New Jersey frost dates · New Jersey growing zones · frost vs. freeze