Mississippi frost dates: M
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Maben | Mar 30 | Nov 4 | 219 d | 8a |
| Macon | Mar 21 | Nov 7 | 231 d | 8b |
| Madden | Mar 19 | Nov 7 | 233 d | 8b |
| Madison | Mar 14 | Nov 14 | 245 d | 8b |
| Magee | Mar 10 | Nov 16 | 251 d | 8b |
| Magnolia | Mar 11 | Nov 18 | 252 d | 8b |
| Mantachie | Apr 1 | Oct 31 | 213 d | 8a |
| Mantee | Mar 30 | Nov 4 | 219 d | 8a |
| Marietta | Apr 1 | Nov 3 | 216 d | 8a |
| Marion | Mar 16 | Nov 12 | 241 d | 8b |
| Marks | Mar 17 | Nov 7 | 235 d | 8a |
| Mathiston | Mar 30 | Nov 4 | 219 d | 8a |
| Mayersville | Mar 5 | Nov 20 | 260 d | 8b |
| Mayhew | Mar 23 | Nov 8 | 230 d | 8a |
| Mc Adams | Mar 18 | Nov 11 | 238 d | 8b |
| Mc Call Creek | Mar 15 | Nov 12 | 242 d | 8b |
| Mc Carley | Mar 28 | Nov 4 | 221 d | 8a |
| Mc Cool | Mar 21 | Nov 13 | 237 d | 8a |
| Mc Henry | Mar 7 | Nov 22 | 260 d | 9a |
| Mc Lain | Mar 18 | Nov 12 | 239 d | 8b |
| Mc Neill | Mar 9 | Nov 18 | 254 d | 9a |
| Mccomb | Mar 11 | Nov 18 | 252 d | 8b |
| Meadville | Mar 15 | Nov 12 | 242 d | 8b |
| Mendenhall | Mar 10 | Nov 16 | 251 d | 8b |
| Meridian | Mar 16 | Nov 12 | 241 d | 8b |
| Merigold | Mar 15 | Nov 11 | 241 d | 8b |
| Metcalfe | Mar 12 | Nov 13 | 246 d | 8b |
| Michigan City | Mar 29 | Nov 6 | 222 d | 7b |
| Midnight | Mar 3 | Nov 21 | 263 d | 8b |
| Minter City | Mar 7 | Nov 17 | 255 d | 8b |
| Mississippi State | Mar 23 | Nov 8 | 230 d | 8a |
| Mize | Mar 17 | Nov 12 | 240 d | 8b |
| Money | Mar 7 | Nov 17 | 255 d | 8b |
| Monticello | Mar 12 | Nov 10 | 243 d | 8b |
| Montpelier | Mar 28 | Nov 1 | 218 d | 8a |
| Mooreville | Apr 1 | Oct 31 | 213 d | 8a |
| Moorhead | Mar 8 | Nov 20 | 257 d | 8b |
| Morgan City | Mar 8 | Nov 20 | 257 d | 8b |
| Morton | Mar 28 | Nov 2 | 219 d | 8b |
| Moselle | Mar 8 | Nov 15 | 252 d | 8b |
| Moss | Mar 12 | Nov 12 | 245 d | 8b |
| Moss Point | Mar 1 | Nov 24 | 268 d | 9a |
| Mound Bayou | Mar 15 | Nov 11 | 241 d | 8b |
| Mount Olive | Mar 17 | Nov 12 | 240 d | 8b |
| Mount Pleasant | Mar 29 | Nov 3 | 219 d | 7b |
| Myrtle | Apr 8 | Oct 28 | 203 d | 8a |