Nebraska frost dates: M
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Macy | May 1 | Oct 6 | 158 d | 5a |
| Madison | Apr 30 | Oct 6 | 159 d | 5b |
| Madrid | May 4 | Oct 7 | 156 d | 5b |
| Magnet | Apr 30 | Oct 6 | 159 d | 5b |
| Malcolm | Apr 22 | Oct 16 | 177 d | 5b |
| Malmo | Apr 23 | Oct 13 | 173 d | 5b |
| Manley | Apr 23 | Oct 16 | 176 d | 6a |
| Marquette | Apr 28 | Oct 10 | 165 d | 5b |
| Marsland | May 8 | Oct 5 | 150 d | 5a |
| Martell | Apr 22 | Oct 14 | 175 d | 6a |
| Maskell | May 3 | Oct 3 | 153 d | 5a |
| Mason City | May 3 | Oct 5 | 155 d | 5b |
| Max | Apr 30 | Oct 12 | 165 d | 5b |
| Maxwell | May 11 | Oct 1 | 143 d | 5b |
| Maywood | May 1 | Oct 9 | 161 d | 5b |
| Mc Cook | May 2 | Oct 9 | 160 d | 6a |
| Mc Cool Junction | Apr 25 | Oct 14 | 172 d | 5b |
| Mcgrew | May 5 | Oct 11 | 159 d | 5a |
| Mclean | Apr 30 | Oct 6 | 159 d | 5b |
| Mead | Apr 23 | Oct 15 | 175 d | 5b |
| Meadow Grove | May 4 | Oct 4 | 153 d | 5b |
| Melbeta | May 5 | Oct 4 | 152 d | 5a |
| Memphis | Apr 25 | Oct 13 | 171 d | 5b |
| Merna | May 10 | Oct 1 | 144 d | 5a |
| Merriman | May 13 | Oct 1 | 141 d | 5a |
| Milford | Apr 26 | Oct 12 | 169 d | 5b |
| Miller | May 3 | Oct 5 | 155 d | 5b |
| Milligan | Apr 20 | Oct 18 | 181 d | 6a |
| Mills | May 10 | Oct 1 | 144 d | 5a |
| Minatare | May 5 | Oct 11 | 159 d | 5a |
| Minden | Apr 26 | Oct 12 | 169 d | 5b |
| Mitchell | May 7 | Oct 2 | 148 d | 5a |
| Monroe | Apr 30 | Oct 5 | 158 d | 5b |
| Moorefield | May 1 | Oct 9 | 161 d | 5b |
| Morrill | May 7 | Oct 2 | 148 d | 5a |
| Morse Bluff | Apr 23 | Oct 13 | 173 d | 5b |
| Mullen | May 7 | Oct 5 | 151 d | 5b |
| Murdock | Apr 23 | Oct 16 | 176 d | 6a |
| Murray | Apr 23 | Oct 11 | 171 d | 6a |