Frost dates for Wanaque Raymond Dam, NJ
At Wanaque Raymond Dam, the median last spring frost (32°F) is Apr 19 and the median first fall frost is Oct 23, for a typical growing season of 188 days. For a 90% chance that the last frost has passed, wait until May 3. Nearby ZIP codes are in USDA hardiness zones 6b to 7a.
- Apr 19Last spring frost (median)50% chance of 32°F after this date
- May 3Safer planting date10% chance of 32°F after this date
- Oct 23First fall frost (median)50% chance of 32°F by this date
- 188 daysGrowing season (median)between 32°F freezes
Last spring frost dates
The chance that the temperature drops to the threshold after each date.
| Temperature | 90% chance later | 50% chance later | 10% chance later |
|---|---|---|---|
| 36°F | Apr 18 | Apr 30 | May 16 |
| 32°F | Apr 5 | Apr 19 | May 3 |
| 28°F | Mar 21 | Apr 4 | Apr 19 |
| 24°F | Mar 10 | Mar 25 | Apr 7 |
First fall frost dates
The chance that the temperature has dropped to the threshold by each date.
| Temperature | 10% chance by | 50% chance by | 90% chance by |
|---|---|---|---|
| 36°F | Oct 3 | Oct 13 | Oct 27 |
| 32°F | Oct 9 | Oct 23 | Nov 6 |
| 28°F | Oct 16 | Nov 4 | Nov 21 |
| 24°F | Oct 28 | Nov 18 | Dec 6 |
Growing season length
Days between the last spring and first fall freeze, as the length reached in 9, 5 and 1 out of 10 years.
| Temperature | 9 in 10 years at least | 5 in 10 years at least | 1 in 10 years at least |
|---|---|---|---|
| 36°F | 147 days | 164 days | 182 days |
| 32°F | 167 days | 188 days | 207 days |
| 28°F | 193 days | 213 days | 235 days |
| 24°F | 215 days | 239 days | 264 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 100% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 07465 | 7a | 0 to 5°F | 1 km |
| 07420 | 7a | 0 to 5°F | 2 km |
| 07403 | 7a | 0 to 5°F | 4 km |
| 07442 | 7a | 0 to 5°F | 5 km |
| 07436 | 7a | 0 to 5°F | 5 km |
| 07457 | 7a | 0 to 5°F | 6 km |
| 07456 | 7a | 0 to 5°F | 6 km |
| 07417 | 7a | 0 to 5°F | 8 km |
| 07444 | 7a | 0 to 5°F | 9 km |
| 07430 | 7a | 0 to 5°F | 10 km |
| 07481 | 7a | 0 to 5°F | 12 km |
| 07446 | 7a | 0 to 5°F | 12 km |
| 07401 | 7a | 0 to 5°F | 13 km |
| 10931 | 7a | 0 to 5°F | 14 km |
| 07432 | 7a | 0 to 5°F | 14 km |
| 07463 | 7a | 0 to 5°F | 15 km |
| 07421 | 6b | -5 to 0°F | 15 km |
| 10974 | 7a | 0 to 5°F | 15 km |
| 10979 | 6b | -5 to 0°F | 15 km |
| 10925 | 6b | -5 to 0°F | 16 km |
| 07458 | 7a | 0 to 5°F | 17 km |
| 10987 | 6b | -5 to 0°F | 18 km |
| 10901 | 7a | 0 to 5°F | 18 km |
| 10952 | 7a | 0 to 5°F | 19 km |
Not the official USDA Plant Hardiness Zone Map. Zones shown here are the values published in the USDA-ARS / Oregon State University PRISM Group 2023 ZIP code tables, shown unaltered. For the official interactive map, visit planthardiness.ars.usda.gov.
About this station
- NOAA station ID USC00289187, at 41.0444, -74.2933, elevation 75 m (245 ft).
- Data quality: Representative (10+ years), 14 years of freeze data.
- Average days per year at or below 32°F: 121.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Charlotteburg Rsvr (11 km)
- Little Falls (19 km)
- Caldwell Essex Co Airport (19 km)
- Boonton 1 SE (19 km)
- Essex Fells Service Bldg (24 km)
- Teterboro Airport (29 km)
- Sussex Airport (33 km)
- Canoe Brook (34 km)
Sources
- NOAA National Centers for Environmental Information, U.S. Climate Normals 1991–2020, annual/seasonal normals by station (version 1.0.1), file dated June 27, 2023; documentation.
- USDA Agricultural Research Service and PRISM Group, Oregon State University, 2023 Plant Hardiness Zone Map ZIP code tables (CONUS, Alaska, Hawaii, Puerto Rico), files dated November 17, 2023. Data © PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed November 1, 2026. Official map: planthardiness.ars.usda.gov.
- U.S. Census Bureau, 2024 Gazetteer ZIP Code Tabulation Areas file, dated August 30, 2024 (ZIP centroids used to find the nearest station).
Freeze dates are 30-year probabilities, not forecasts. Check your local forecast before planting tender plants.