Illinois frost dates: V
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Valier | Apr 4 | Oct 27 | 206 d | 7a |
| Valmeyer | Apr 9 | Oct 26 | 200 d | 7a |
| Van Orin | Apr 24 | Oct 14 | 173 d | 5b |
| Vandalia | Apr 10 | Oct 24 | 197 d | 6b |
| Varna | Apr 20 | Oct 17 | 180 d | 5b |
| Venice | Apr 1 | Nov 4 | 217 d | 7a |
| Vergennes | Apr 6 | Oct 22 | 199 d | 7a |
| Vermilion | Apr 21 | Oct 20 | 182 d | 6a |
| Vermont | Apr 16 | Oct 23 | 190 d | 6a |
| Vernon | Apr 10 | Oct 24 | 197 d | 6b |
| Vernon Hills | Apr 29 | Oct 20 | 174 d | 6a |
| Verona | Apr 20 | Oct 23 | 186 d | 5b |
| Versailles | Apr 18 | Oct 15 | 180 d | 6a |
| Victoria | Apr 28 | Oct 12 | 167 d | 5b |
| Vienna | Apr 14 | Oct 21 | 190 d | 7a |
| Villa Grove | Apr 15 | Oct 20 | 188 d | 6a |
| Villa Park | Apr 28 | Oct 16 | 171 d | 6a |
| Villa Ridge | Apr 2 | Oct 31 | 212 d | 7a |
| Viola | Apr 22 | Oct 19 | 180 d | 5b |
| Virden | Apr 7 | Oct 29 | 205 d | 6b |
| Virginia | Apr 19 | Oct 17 | 181 d | 6a |