New Jersey frost dates: K
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Keansburg | Apr 17 | Oct 23 | 189 d | 7b |
| Kearny | Apr 4 | Nov 6 | 216 d | 7b |
| Keasbey | Apr 15 | Oct 26 | 194 d | 7b |
| Kendall Park | Apr 15 | Oct 26 | 194 d | 7a |
| Kenilworth | Apr 11 | Oct 31 | 203 d | 7a |
| Kenvil | Apr 25 | Oct 19 | 177 d | 6b |
| Keyport | Apr 17 | Oct 23 | 189 d | 7b |
| Kingston | Apr 25 | Oct 16 | 174 d | 7a |