Missouri frost dates: H
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Hale | Apr 15 | Oct 21 | 189 d | 6a |
| Half Way | Apr 14 | Oct 23 | 192 d | 6b |
| Hallsville | Apr 5 | Oct 31 | 209 d | 6b |
| Halltown | Apr 11 | Oct 24 | 196 d | 7a |
| Hamilton | Apr 23 | Oct 17 | 177 d | 6a |
| Hannibal | Apr 10 | Oct 27 | 200 d | 6a |
| Hardenville | Apr 9 | Oct 23 | 197 d | 7b |
| Hardin | Apr 19 | Oct 18 | 182 d | 6a |
| Harris | Apr 25 | Oct 15 | 173 d | 6a |
| Harrisburg | Apr 5 | Oct 31 | 209 d | 6b |
| Harrisonville | Apr 8 | Oct 29 | 204 d | 6b |
| Hartsburg | Apr 7 | Oct 29 | 205 d | 6b |
| Hartshorn | Apr 7 | Oct 27 | 203 d | 6b |
| Hartville | Apr 15 | Oct 22 | 190 d | 6b |
| Harviell | Mar 29 | Nov 5 | 221 d | 7b |
| Harwood | Apr 8 | Oct 29 | 204 d | 6b |
| Hatfield | Apr 16 | Oct 20 | 187 d | 5b |
| Hawk Point | Apr 14 | Oct 23 | 192 d | 6b |
| Hayti | Mar 24 | Nov 9 | 230 d | 7b |
| Hazelwood | Apr 2 | Nov 4 | 216 d | 7a |
| Helena | Apr 17 | Oct 19 | 185 d | 6a |
| Hematite | Apr 9 | Oct 26 | 200 d | 7a |
| Henley | Apr 7 | Nov 1 | 208 d | 6b |
| Henrietta | Apr 19 | Oct 18 | 182 d | 6a |
| Herculaneum | Apr 9 | Oct 26 | 200 d | 7a |
| Hermann | Apr 27 | Oct 13 | 169 d | 6b |
| Hermitage | Apr 7 | Oct 28 | 204 d | 6b |
| Higbee | Apr 13 | Oct 25 | 195 d | 6b |
| Higginsville | Apr 10 | Oct 24 | 197 d | 6b |
| High Hill | Apr 14 | Oct 23 | 192 d | 6b |
| High Point | Apr 11 | Oct 25 | 197 d | 6b |
| High Ridge | Apr 12 | Oct 23 | 194 d | 7a |
| Highlandville | Apr 15 | Oct 23 | 191 d | 6b |
| Hillsboro | Apr 9 | Oct 26 | 200 d | 6b |
| Holcomb | Mar 31 | Nov 1 | 215 d | 7b |
| Holden | Apr 13 | Oct 23 | 193 d | 6b |
| Holland | Mar 24 | Nov 6 | 227 d | 8a |
| Holliday | Apr 21 | Oct 17 | 179 d | 6a |
| Hollister | Apr 8 | Nov 2 | 208 d | 7a |
| Holt | Apr 19 | Oct 17 | 181 d | 6a |
| Holts Summit | Apr 10 | Oct 26 | 199 d | 6b |
| Hopkins | Apr 24 | Oct 15 | 174 d | 5b |
| Hornersville | Mar 31 | Nov 1 | 215 d | 8a |
| House Springs | Apr 9 | Oct 26 | 200 d | 6b |
| Houston | Apr 10 | Oct 23 | 196 d | 7a |
| Houstonia | Apr 17 | Oct 20 | 186 d | 6b |
| Huggins | Apr 11 | Oct 28 | 200 d | 6b |
| Hughesville | Apr 10 | Oct 26 | 199 d | 6b |
| Humansville | Apr 6 | Oct 30 | 207 d | 6b |
| Hume | Apr 15 | Oct 22 | 190 d | 6b |
| Humphreys | Apr 16 | Oct 20 | 187 d | 6a |
| Hunnewell | Apr 21 | Oct 17 | 179 d | 6a |
| Huntsville | Apr 13 | Oct 25 | 195 d | 6a |
| Hurdland | Apr 19 | Oct 18 | 182 d | 6a |
| Hurley | Apr 16 | Oct 21 | 188 d | 6b |