Minnesota frost dates: H
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Hackensack | May 4 | Oct 7 | 156 d | 4a |
| Hallock | May 8 | Sep 30 | 145 d | 3b |
| Halma | May 8 | Sep 30 | 145 d | 3b |
| Halstad | May 11 | Sep 27 | 139 d | 4a |
| Hamburg | May 2 | Oct 5 | 156 d | 4b |
| Hamel | Apr 30 | Oct 8 | 161 d | 4b |
| Hampton | May 2 | Oct 5 | 156 d | 4b |
| Hancock | May 4 | Oct 1 | 150 d | 4b |
| Hanley Falls | May 4 | Oct 1 | 150 d | 4b |
| Hanover | Apr 30 | Oct 9 | 162 d | 4b |
| Hanska | Apr 29 | Oct 7 | 161 d | 5a |
| Hardwick | May 4 | Oct 2 | 151 d | 4b |
| Harmony | May 14 | Sep 28 | 137 d | 4b |
| Harris | May 2 | Oct 4 | 155 d | 4b |
| Hartland | Apr 30 | Oct 6 | 159 d | 5a |
| Hastings | Apr 23 | Oct 19 | 179 d | 5a |
| Hawley | May 5 | Oct 3 | 151 d | 4a |
| Hayfield | Apr 30 | Oct 6 | 159 d | 5a |
| Hayward | Apr 27 | Oct 9 | 165 d | 5a |
| Hector | May 6 | Oct 1 | 148 d | 4b |
| Henderson | Apr 24 | Oct 15 | 174 d | 4b |
| Hendricks | May 6 | Oct 3 | 150 d | 4b |
| Hendrum | May 9 | Oct 1 | 145 d | 4a |
| Henning | May 5 | Oct 5 | 153 d | 4a |
| Henriette | May 9 | Sep 30 | 144 d | 4a |
| Herman | May 1 | Oct 9 | 161 d | 4b |
| Heron Lake | May 2 | Oct 2 | 153 d | 5a |
| Hewitt | May 10 | Sep 30 | 143 d | 4a |
| Hibbing | Jun 5 | Sep 8 | 95 d | 3b |
| Hill City | May 16 | Oct 1 | 138 d | 4a |
| Hillman | May 4 | Oct 5 | 154 d | 4a |
| Hills | May 1 | Oct 4 | 156 d | 5a |
| Hinckley | May 16 | Sep 24 | 131 d | 4a |
| Hines | May 24 | Sep 17 | 116 d | 3b |
| Hitterdal | May 5 | Oct 3 | 151 d | 4a |
| Hoffman | May 4 | Oct 1 | 150 d | 4b |
| Hokah | Apr 15 | Oct 28 | 196 d | 5a |
| Holdingford | May 3 | Oct 7 | 157 d | 4b |
| Holland | May 4 | Oct 2 | 151 d | 4b |
| Hollandale | Apr 27 | Oct 9 | 165 d | 4b |
| Holloway | May 3 | Oct 2 | 152 d | 4b |
| Holmes City | May 2 | Oct 8 | 159 d | 4b |
| Holyoke | Jun 1 | Sep 22 | 113 d | 4a |
| Homer | Apr 21 | Oct 19 | 181 d | 5a |
| Hope | May 5 | Oct 6 | 154 d | 4b |
| Hopkins | Apr 29 | Oct 12 | 166 d | 5a |
| Houston | May 8 | Oct 3 | 148 d | 5a |
| Hovland | May 20 | Oct 5 | 138 d | 4a |
| Howard Lake | Apr 30 | Oct 10 | 163 d | 4b |
| Hoyt Lakes | frost any month | 3b | ||
| Hugo | Apr 30 | Oct 11 | 164 d | 4b |
| Humboldt | May 16 | Sep 29 | 136 d | 3b |
| Huntley | Apr 27 | Oct 10 | 166 d | 5a |
| Hutchinson | Apr 28 | Oct 8 | 163 d | 4b |