Oklahoma frost dates: D
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Dacoma | Apr 11 | Oct 26 | 198 d | 7a |
| Daisy | Mar 27 | Nov 9 | 227 d | 7b |
| Davenport | Apr 2 | Nov 2 | 214 d | 7b |
| Davidson | Mar 26 | Nov 10 | 229 d | 8a |
| Davis | Apr 4 | Oct 31 | 210 d | 7b |
| Deer Creek | Apr 12 | Oct 29 | 200 d | 7a |
| Delaware | Apr 4 | Nov 1 | 211 d | 7a |
| Depew | Apr 9 | Oct 25 | 199 d | 7b |
| Devol | Mar 31 | Nov 6 | 220 d | 8a |
| Dewar | Apr 8 | Oct 28 | 203 d | 7b |
| Dewey | Apr 11 | Oct 24 | 196 d | 7a |
| Dibble | Mar 31 | Nov 3 | 217 d | 7b |
| Dill City | Apr 5 | Nov 4 | 213 d | 7b |
| Disney | Apr 7 | Nov 2 | 209 d | 7a |
| Dougherty | Apr 4 | Oct 31 | 210 d | 8a |
| Douglas | Apr 11 | Oct 31 | 203 d | 7a |
| Dover | Apr 14 | Oct 30 | 199 d | 7a |
| Drummond | Apr 10 | Oct 31 | 204 d | 7a |
| Drumright | Apr 6 | Oct 29 | 206 d | 7b |
| Duke | Apr 3 | Nov 4 | 215 d | 7b |
| Duncan | Mar 25 | Nov 7 | 227 d | 8a |
| Durant | Mar 19 | Nov 12 | 238 d | 8a |
| Durham | Apr 9 | Oct 27 | 201 d | 7a |
| Dustin | Mar 24 | Nov 9 | 230 d | 7b |