Mississippi frost dates: W
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Walls | Mar 16 | Nov 16 | 245 d | 8a |
| Walnut | Apr 3 | Oct 30 | 210 d | 7b |
| Walnut Grove | Mar 19 | Nov 7 | 233 d | 8b |
| Walthall | Mar 30 | Nov 4 | 219 d | 8a |
| Washington | Mar 16 | Nov 9 | 238 d | 8b |
| Water Valley | Apr 1 | Nov 3 | 216 d | 8a |
| Waterford | Apr 3 | Oct 31 | 211 d | 8a |
| Waveland | Feb 21 | Dec 3 | 285 d | 9a |
| Waynesboro | Mar 17 | Nov 9 | 237 d | 8b |
| Wayside | Mar 13 | Nov 15 | 247 d | 8b |
| Webb | Mar 7 | Nov 17 | 255 d | 8b |
| Weir | Mar 21 | Nov 13 | 237 d | 8a |
| Wesson | Mar 14 | Nov 13 | 244 d | 8b |
| West | Mar 18 | Nov 11 | 238 d | 8a |
| West Point | Mar 23 | Nov 8 | 230 d | 8a |
| Wheeler | Apr 1 | Nov 3 | 216 d | 8a |
| Whitfield | Mar 14 | Nov 14 | 245 d | 8b |
| Wiggins | Mar 14 | Nov 18 | 249 d | 8b |
| Winona | Apr 7 | Oct 29 | 205 d | 8a |
| Winstonville | Mar 15 | Nov 11 | 241 d | 8b |
| Winterville | Mar 12 | Nov 13 | 246 d | 8b |
| Woodland | Mar 28 | Nov 1 | 218 d | 8a |
| Woodville | Mar 11 | Nov 17 | 251 d | 9a |