Virginia frost dates: U
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Union Hall | Apr 20 | Oct 25 | 188 d | 7b |
| Unionville | Apr 7 | Oct 30 | 206 d | 7a |
| Upperville | Apr 17 | Nov 1 | 198 d | 7a |
| Urbanna | Apr 6 | Nov 1 | 209 d | 8a |
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Union Hall | Apr 20 | Oct 25 | 188 d | 7b |
| Unionville | Apr 7 | Oct 30 | 206 d | 7a |
| Upperville | Apr 17 | Nov 1 | 198 d | 7a |
| Urbanna | Apr 6 | Nov 1 | 209 d | 8a |