Iowa frost dates: V
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Vail | Apr 27 | Oct 11 | 167 d | 5a |
| Van Horne | May 3 | Oct 3 | 153 d | 5a |
| Van Meter | Apr 30 | Oct 3 | 156 d | 5b |
| Van Wert | Apr 29 | Oct 9 | 163 d | 5b |
| Varina | Apr 26 | Oct 7 | 164 d | 5a |
| Ventura | May 3 | Oct 1 | 151 d | 5a |
| Victor | Apr 28 | Oct 10 | 165 d | 5a |
| Villisca | Apr 27 | Oct 12 | 168 d | 5b |
| Vincent | Apr 28 | Oct 8 | 163 d | 5a |
| Vining | Apr 28 | Oct 10 | 165 d | 5a |
| Vinton | May 3 | Oct 3 | 153 d | 5a |
| Volga | May 8 | Oct 1 | 146 d | 4b |