New Jersey frost dates: D
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Dayton | Apr 15 | Oct 26 | 194 d | 7a |
| Deal | Apr 9 | Nov 3 | 208 d | 7b |
| Deepwater | Apr 7 | Nov 1 | 208 d | 7b |
| Deerfield Street | Apr 10 | Nov 1 | 205 d | 7b |
| Delaware | Apr 30 | Oct 18 | 171 d | 7a |
| Delmont | Apr 24 | Oct 22 | 181 d | 7b |
| Demarest | Apr 20 | Oct 26 | 189 d | 7b |
| Dennisville | Apr 24 | Oct 22 | 181 d | 7b |
| Denville | Apr 17 | Oct 23 | 189 d | 6b |
| Deptford | Apr 8 | Nov 1 | 207 d | 7b |
| Dividing Creek | Apr 24 | Oct 23 | 182 d | 7b |
| Dorchester | Apr 24 | Oct 22 | 181 d | 7b |
| Dorothy | Apr 24 | Oct 22 | 181 d | 7a |
| Dover | Apr 17 | Oct 23 | 189 d | 6b |
| Dumont | Apr 3 | Nov 4 | 215 d | 7b |
| Dunellen | Apr 11 | Oct 28 | 200 d | 7a |