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Frost dates and growing zones in Ohio
Towns covered so far in Ohio fall in USDA zones 6a, 6b, 7a. Median dates mean frost comes later (spring) or earlier (fall) in half of years.
Towns
| Town | Zone | Median last frost | Median first frost |
|---|---|---|---|
| Columbus | 6b | Apr 18 | Oct 27 |
| Cleveland | 7a | Apr 8 | Nov 12 |
| Cincinnati | 6b | Apr 16 | Oct 25 |
| Toledo | 6b | Apr 22 | Oct 24 |
| Akron | 6b | Apr 24 | Oct 28 |
| Dayton | 6b | Apr 18 | Oct 25 |
| Canton | 6b | Apr 24 | Oct 26 |
| Youngstown | 6a | May 1 | Oct 17 |
| Springfield | 6a | Apr 25 | Oct 19 |
| Mansfield | 6a | Apr 26 | Oct 22 |
| Delaware | 6b | Apr 19 | Oct 26 |
| Lima | 6b | Apr 24 | Oct 24 |