Ohio frost dates: Y
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Yellow Springs | Apr 24 | Oct 17 | 176 d | 6a |
| Yorkshire | Apr 27 | Oct 19 | 175 d | 6a |
| Yorkville | Apr 18 | Nov 1 | 197 d | 6b |
| Youngstown | May 8 | Oct 12 | 157 d | 6a |
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Yellow Springs | Apr 24 | Oct 17 | 176 d | 6a |
| Yorkshire | Apr 27 | Oct 19 | 175 d | 6a |
| Yorkville | Apr 18 | Nov 1 | 197 d | 6b |
| Youngstown | May 8 | Oct 12 | 157 d | 6a |