Frost dates for Millville Muni Airport, NJ
At Millville Muni Airport, the median last spring frost (32°F) is Apr 24 and the median first fall frost is Oct 23, for a typical growing season of 181 days. For a 90% chance that the last frost has passed, wait until May 10. Nearby ZIP codes are in USDA hardiness zones 7a to 7b.
- Apr 24Last spring frost (median)50% chance of 32°F after this date
- May 10Safer planting date10% chance of 32°F after this date
- Oct 23First fall frost (median)50% chance of 32°F by this date
- 181 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 21 | May 6 | May 22 |
| 32°F | Apr 8 | Apr 24 | May 10 |
| 28°F | Mar 26 | Apr 10 | Apr 26 |
| 24°F | Mar 11 | Mar 27 | Apr 11 |
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 2 | Oct 14 | Oct 28 |
| 32°F | Oct 10 | Oct 23 | Nov 5 |
| 28°F | Oct 19 | Nov 2 | Nov 17 |
| 24°F | Nov 1 | Nov 14 | Dec 2 |
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 | 141 days | 161 days | 181 days |
| 32°F | 160 days | 181 days | 202 days |
| 28°F | 186 days | 208 days | 228 days |
| 24°F | 212 days | 232 days | 255 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 |
|---|---|---|---|
| 08332 | 7a | 0 to 5°F | 3 km |
| 08320 | 7a | 0 to 5°F | 8 km |
| 08329 | 7b | 5 to 10°F | 10 km |
| 08348 | 7a | 0 to 5°F | 10 km |
| 08345 | 7b | 5 to 10°F | 11 km |
| 08349 | 7b | 5 to 10°F | 12 km |
| 08311 | 7b | 5 to 10°F | 13 km |
| 08361 | 7a | 0 to 5°F | 13 km |
| 08360 | 7a | 0 to 5°F | 15 km |
| 08321 | 7b | 5 to 10°F | 17 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 USW00013735, at 39.3667, -75.0667, elevation 21 m (70 ft).
- Data quality: Standard (24+ years of data), 28 years of freeze data.
- Average days per year at or below 32°F: 108.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Seabrook Farms (19 km)
- Estell Manor (20 km)
- Woodstown Pittsgrov 4e (22 km)
- Belleplain Station Forest (23 km)
- Hammonton 1 NE (38 km)
- Glassboro 2 NE (41 km)
- Atlantic City Intl Airport (44 km)
- Cape May 2 NW (47 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.