Frost dates for Hammonton 1 NE, NJ
At Hammonton 1 NE, the median last spring frost (32°F) is Apr 14 and the median first fall frost is Oct 27, for a typical growing season of 196 days. For a 90% chance that the last frost has passed, wait until Apr 27. Nearby ZIP codes are in USDA hardiness zone 7a.
- Apr 14Last spring frost (median)50% chance of 32°F after this date
- Apr 27Safer planting date10% chance of 32°F after this date
- Oct 27First fall frost (median)50% chance of 32°F by this date
- 196 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 13 | Apr 27 | May 12 |
| 32°F | Apr 1 | Apr 14 | Apr 27 |
| 28°F | Mar 21 | Apr 2 | Apr 16 |
| 24°F | Mar 8 | Mar 22 | Apr 3 |
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 5 | Oct 16 | Oct 31 |
| 32°F | Oct 13 | Oct 27 | Nov 8 |
| 28°F | Oct 24 | Nov 5 | Nov 19 |
| 24°F | Nov 2 | Nov 17 | Dec 3 |
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 | 151 days | 172 days | 190 days |
| 32°F | 175 days | 196 days | 214 days |
| 28°F | 197 days | 217 days | 237 days |
| 24°F | 219 days | 240 days | 262 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 |
|---|---|---|---|
| 08037 | 7a | 0 to 5°F | 3 km |
| 08095 | 7a | 0 to 5°F | 5 km |
| 08089 | 7a | 0 to 5°F | 8 km |
| 08346 | 7a | 0 to 5°F | 9 km |
| 08217 | 7a | 0 to 5°F | 10 km |
| 08094 | 7a | 0 to 5°F | 13 km |
| 08310 | 7a | 0 to 5°F | 15 km |
| 08326 | 7a | 0 to 5°F | 16 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 USC00283662, at 39.6442, -74.8047, elevation 38 m (125 ft).
- Data quality: Representative (10+ years), 18 years of freeze data.
- Average days per year at or below 32°F: 105.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Indian Mills 2 W (17 km)
- Glassboro 2 NE (27 km)
- Estell Manor (29 km)
- Atlantic City Intl Airport (30 km)
- Woodstown Pittsgrov 4e (33 km)
- Mount Holly S Jersey Airport (34 km)
- Moorestown (37 km)
- Millville Muni Airport (38 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.