Ohio planting zones & frost dates
The 7 Ohio cities on this site fall in zones 6b, 7a. Last spring frost dates range from Apr 14 in Cleveland to Apr 30 in Akron.
| City | Zone | Last frost | First frost | Population |
|---|---|---|---|---|
| Columbus | 6b | Apr 27 | Oct 20 | 933,263 |
| Cleveland | 7a | Apr 14 | Nov 7 | 365,379 |
| Cincinnati | 6b | Apr 24 | Oct 21 | 314,915 |
| Toledo | 6b | Apr 27 | Oct 22 | 265,638 |
| Akron | 6b | Apr 30 | Oct 22 | 189,664 |
| Dayton | 6b | Apr 25 | Oct 21 | 136,346 |
| Parma | 6b | Apr 27 | Oct 30 | 79,350 |
Frost dates are 30%-risk dates from the nearest suitable NOAA station. Population: Census Vintage 2024 estimates.