Alabama frost dates: H
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Hackleburg | Mar 29 | Nov 9 | 225 d | 7b |
| Haleyville | Mar 29 | Nov 9 | 225 d | 7b |
| Hamilton | Apr 11 | Oct 27 | 199 d | 7b |
| Hanceville | Apr 6 | Oct 29 | 206 d | 8a |
| Hardaway | Mar 25 | Nov 8 | 228 d | 8b |
| Harpersville | Mar 31 | Nov 2 | 216 d | 8a |
| Hartford | Mar 23 | Nov 7 | 229 d | 8b |
| Hartselle | Mar 26 | Nov 7 | 226 d | 8a |
| Harvest | Mar 20 | Nov 12 | 237 d | 8a |
| Hatchechubbee | Mar 26 | Nov 8 | 227 d | 8b |
| Hayden | Apr 6 | Oct 29 | 206 d | 8a |
| Hayneville | Mar 13 | Nov 13 | 245 d | 8b |
| Hazel Green | Apr 7 | Oct 28 | 204 d | 7b |
| Headland | Mar 5 | Nov 24 | 264 d | 9a |
| Heflin | Apr 6 | Oct 31 | 208 d | 8a |
| Helena | Mar 19 | Nov 8 | 234 d | 8a |
| Henagar | Apr 7 | Oct 30 | 206 d | 7b |
| Higdon | Apr 7 | Oct 31 | 207 d | 7b |
| Highland Home | Mar 4 | Nov 26 | 267 d | 8b |
| Hillsboro | Mar 28 | Nov 3 | 220 d | 8a |
| Hodges | Apr 5 | Oct 28 | 206 d | 7b |
| Hollins | Apr 2 | Oct 31 | 212 d | 8a |
| Holly Pond | Apr 5 | Nov 1 | 210 d | 8a |
| Hollytree | Apr 4 | Oct 30 | 209 d | 7b |
| Hollywood | Apr 2 | Oct 30 | 211 d | 7b |
| Holy Trinity | Mar 26 | Nov 8 | 227 d | 8b |
| Honoraville | Mar 4 | Nov 26 | 267 d | 8b |
| Hope Hull | Mar 13 | Nov 13 | 245 d | 8b |
| Horton | Mar 19 | Nov 18 | 244 d | 8a |
| Houston | Apr 4 | Nov 1 | 211 d | 8a |
| Huntsville | Mar 24 | Nov 8 | 229 d | 8a |
| Hurtsboro | Mar 21 | Nov 11 | 235 d | 8b |
| Huxford | Feb 28 | Nov 27 | 272 d | 8b |