New Jersey frost dates: N
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| National Park | Apr 2 | Nov 10 | 222 d | 7b |
| Navesink | Apr 9 | Nov 3 | 208 d | 7b |
| Neptune | Apr 9 | Nov 3 | 208 d | 7b |
| Neshanic Station | Apr 16 | Oct 27 | 194 d | 7a |
| Netcong | Apr 25 | Oct 19 | 177 d | 6b |
| New Brunswick | Apr 15 | Oct 26 | 194 d | 7a |
| New Egypt | Apr 25 | Oct 16 | 174 d | 7a |
| New Gretna | Apr 1 | Nov 15 | 228 d | 7a |
| New Lisbon | Apr 15 | Oct 29 | 197 d | 7a |
| New Milford | Apr 3 | Nov 4 | 215 d | 7b |
| New Providence | Apr 18 | Oct 27 | 192 d | 7a |
| New Vernon | Apr 18 | Oct 27 | 192 d | 7a |
| Newark | Apr 4 | Nov 6 | 216 d | 7b |
| Newfield | Apr 11 | Nov 3 | 206 d | 7a |
| Newfoundland | Apr 25 | Oct 17 | 175 d | 6b |
| Newport | Apr 24 | Oct 23 | 182 d | 7b |
| Newton | Apr 24 | Oct 16 | 175 d | 6b |
| Newtonville | Apr 14 | Oct 27 | 196 d | 7a |
| Norma | Apr 11 | Nov 3 | 206 d | 7b |
| Normandy Beach | Apr 23 | Oct 20 | 180 d | 7b |
| North Arlington | Apr 4 | Nov 6 | 216 d | 7b |
| North Bergen | Mar 30 | Nov 20 | 235 d | 7b |
| North Brunswick | Apr 15 | Oct 26 | 194 d | 7a |
| Northfield | Mar 26 | Nov 22 | 241 d | 7b |
| Northvale | Apr 20 | Oct 26 | 189 d | 7a |
| Norwood | Apr 20 | Oct 26 | 189 d | 7a |
| Nutley | Apr 4 | Nov 6 | 216 d | 7b |