Tennessee frost dates: H
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Halls | Mar 31 | Nov 6 | 220 d | 8a |
| Hampshire | Apr 5 | Oct 28 | 206 d | 7b |
| Hampton | Apr 19 | Oct 24 | 188 d | 7a |
| Harriman | Apr 3 | Nov 4 | 215 d | 7b |
| Harrison | Mar 24 | Nov 9 | 230 d | 8a |
| Harrogate | Apr 23 | Oct 19 | 179 d | 7a |
| Hartford | Apr 6 | Nov 1 | 209 d | 7b |
| Hartsville | Apr 12 | Oct 26 | 197 d | 7b |
| Heiskell | Apr 22 | Oct 25 | 186 d | 7b |
| Helenwood | Apr 23 | Oct 18 | 178 d | 7a |
| Henderson | Apr 10 | Oct 25 | 198 d | 7b |
| Hendersonville | Apr 11 | Oct 29 | 201 d | 7b |
| Henning | Mar 27 | Nov 4 | 222 d | 8a |
| Henry | Apr 7 | Oct 31 | 207 d | 7b |
| Hermitage | Apr 1 | Nov 4 | 217 d | 7b |
| Hickman | Apr 3 | Nov 4 | 215 d | 7b |
| Hickory Valley | Apr 1 | Nov 3 | 216 d | 7b |
| Hilham | Apr 12 | Oct 25 | 196 d | 7a |
| Hillsboro | Apr 2 | Nov 4 | 216 d | 7b |
| Hixson | Apr 7 | Oct 29 | 205 d | 8a |
| Hohenwald | Apr 5 | Nov 1 | 210 d | 7b |
| Holladay | Apr 3 | Nov 1 | 212 d | 7b |
| Hollow Rock | Apr 2 | Oct 31 | 212 d | 7b |
| Hornbeak | Apr 3 | Nov 1 | 212 d | 7b |
| Hornsby | Apr 3 | Oct 30 | 210 d | 7b |
| Humboldt | Apr 4 | Oct 30 | 209 d | 7b |
| Huntingdon | Apr 2 | Oct 31 | 212 d | 7b |
| Huntland | Apr 6 | Oct 29 | 206 d | 7b |
| Huntsville | Apr 23 | Oct 18 | 178 d | 7a |
| Huron | Apr 5 | Oct 30 | 208 d | 7b |
| Hurricane Mills | Apr 13 | Oct 24 | 194 d | 7b |