Frost dates for Newark Intl Airport, NJ
At Newark Intl Airport, the median last spring frost (32°F) is Apr 2 and the median first fall frost is Nov 10, for a typical growing season of 222 days. For a 90% chance that the last frost has passed, wait until Apr 15. Nearby ZIP codes are in USDA hardiness zones 7a to 7b.
- Apr 2Last spring frost (median)50% chance of 32°F after this date
- Apr 15Safer planting date10% chance of 32°F after this date
- Nov 10First fall frost (median)50% chance of 32°F by this date
- 222 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 1 | Apr 13 | Apr 29 |
| 32°F | Mar 20 | Apr 2 | Apr 15 |
| 28°F | Mar 8 | Mar 23 | Apr 4 |
| 24°F | Feb 25 | Mar 13 | Mar 27 |
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 17 | Oct 30 | Nov 12 |
| 32°F | Oct 28 | Nov 10 | Nov 25 |
| 28°F | Nov 8 | Nov 22 | Dec 8 |
| 24°F | Nov 18 | Dec 4 | Dec 22 |
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 | 179 days | 200 days | 217 days |
| 32°F | 202 days | 222 days | 243 days |
| 28°F | 223 days | 244 days | 266 days |
| 24°F | 246 days | 267 days | 290 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 |
|---|---|---|---|
| 07201 | 7b | 5 to 10°F | 1 km |
| 07114 | 7b | 5 to 10°F | 2 km |
| 07206 | 7b | 5 to 10°F | 4 km |
| 07208 | 7b | 5 to 10°F | 5 km |
| 07112 | 7b | 5 to 10°F | 5 km |
| 07202 | 7b | 5 to 10°F | 5 km |
| 07205 | 7b | 5 to 10°F | 5 km |
| 07002 | 7b | 5 to 10°F | 5 km |
| 10303 | 7b | 5 to 10°F | 6 km |
| 10302 | 7b | 5 to 10°F | 6 km |
| 07111 | 7a | 0 to 5°F | 7 km |
| 10310 | 7b | 5 to 10°F | 7 km |
| 07305 | 7b | 5 to 10°F | 8 km |
| 10311 | 7b | 5 to 10°F | 9 km |
| 10301 | 7b | 5 to 10°F | 9 km |
| 10314 | 7b | 5 to 10°F | 9 km |
| 07008 | 7b | 5 to 10°F | 12 km |
| 10308 | 7b | 5 to 10°F | 14 km |
| 10312 | 7b | 5 to 10°F | 15 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 USW00014734, at 40.6825, -74.1694, elevation 2 m (7 ft).
- Data quality: Standard (24+ years of data), 28 years of freeze data.
- Average days per year at or below 32°F: 80.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Harrison (7 km)
- Cranford (13 km)
- Canoe Brook (17 km)
- Essex Fells Service Bldg (19 km)
- Teterboro Airport (21 km)
- Plainfield (22 km)
- Little Falls (23 km)
- Caldwell Essex Co Airport (24 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.