Frost dates for Moorestown, NJ
At Moorestown, the median last spring frost (32°F) is Apr 12 and the median first fall frost is Nov 1, for a typical growing season of 200 days. For a 90% chance that the last frost has passed, wait until May 3. Nearby ZIP codes are in USDA hardiness zone 7b.
- Apr 12Last spring frost (median)50% chance of 32°F after this date
- May 3Safer planting date10% chance of 32°F after this date
- Nov 1First fall frost (median)50% chance of 32°F by this date
- 200 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 10 | Apr 29 | May 16 |
| 32°F | Mar 28 | Apr 12 | May 3 |
| 28°F | Mar 13 | Mar 29 | Apr 16 |
| 24°F | Feb 27 | Mar 16 | Mar 31 |
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 19 | Nov 2 |
| 32°F | Oct 17 | Nov 1 | Nov 14 |
| 28°F | Oct 31 | Nov 12 | Nov 30 |
| 24°F | Nov 8 | Nov 24 | Dec 15 |
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 | 149 days | 172 days | 197 days |
| 32°F | 174 days | 200 days | 223 days |
| 28°F | 205 days | 228 days | 250 days |
| 24°F | 230 days | 253 days | 279 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 |
|---|---|---|---|
| 08052 | 7b | 5 to 10°F | 2 km |
| 08057 | 7b | 5 to 10°F | 4 km |
| 08034 | 7b | 5 to 10°F | 6 km |
| 08003 | 7b | 5 to 10°F | 7 km |
| 08045 | 7b | 5 to 10°F | 11 km |
| 08043 | 7b | 5 to 10°F | 11 km |
| 08049 | 7b | 5 to 10°F | 12 km |
| 08026 | 7b | 5 to 10°F | 13 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 USC00285728, at 39.9511, -74.9697, elevation 14 m (45 ft).
- Data quality: Representative (10+ years), 18 years of freeze data.
- Average days per year at or below 32°F: 102.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Pennsauken 1n (5 km)
- Mount Holly S Jersey Airport (11 km)
- Philadelphia/mt Holly WFO (15 km)
- Indian Mills 2 W (23 km)
- Glassboro 2 NE (26 km)
- Hammonton 1 NE (37 km)
- Trenton Mercer Co Airport (39 km)
- Trenton State College (39 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.