Indiana frost dates: D
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Dale | Apr 11 | Oct 26 | 198 d | 7a |
| Daleville | Apr 16 | Oct 25 | 192 d | 6a |
| Dana | Apr 30 | Oct 12 | 165 d | 6a |
| Danville | Apr 23 | Oct 19 | 179 d | 6a |
| Darlington | Apr 27 | Oct 12 | 168 d | 6a |
| Dayton | Apr 20 | Oct 20 | 183 d | 6a |
| Decatur | Apr 23 | Oct 19 | 179 d | 6a |
| Decker | Apr 13 | Oct 25 | 195 d | 6b |
| Deedsville | Apr 23 | Oct 21 | 181 d | 6a |
| Delong | Apr 25 | Oct 18 | 176 d | 6a |
| Delphi | Apr 22 | Oct 17 | 178 d | 6a |
| Demotte | Apr 25 | Oct 17 | 175 d | 5b |
| Denver | Apr 23 | Oct 21 | 181 d | 6a |
| Depauw | Apr 17 | Oct 19 | 185 d | 6b |
| Deputy | Apr 18 | Oct 20 | 185 d | 6b |
| Derby | Apr 2 | Nov 7 | 219 d | 7a |
| Dillsboro | Apr 30 | Oct 16 | 169 d | 6b |
| Donaldson | Apr 25 | Oct 21 | 179 d | 6a |
| Dublin | Apr 27 | Oct 9 | 165 d | 6a |
| Dubois | Apr 25 | Oct 15 | 173 d | 6b |
| Dugger | Apr 14 | Oct 26 | 195 d | 6b |
| Dunkirk | Apr 22 | Oct 22 | 183 d | 6a |
| Dunreith | Apr 27 | Oct 17 | 173 d | 6a |
| Dupont | Apr 21 | Oct 21 | 183 d | 6b |
| Dyer | Apr 23 | Oct 20 | 180 d | 6a |