Frost dates in Ottawa County, Ohio
The average last spring frost in Ottawa County falls Apr 10 to Apr 26 and the average first fall frost Oct 23 to Nov 5, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 6b to 7a. Places: Clay Center, Elmore, Genoa, Marblehead, Oak Harbor, Port Clinton. Pick a ZIP for 10% and 90% odds, soil temperature and the 7-day freeze forecast.
| ZIP | Place | Last spring frost | First fall frost | Zone |
|---|---|---|---|---|
| 43408 | Clay Center | Apr 20 | Oct 27 | 6b |
| 43416 | Elmore | Apr 20 | Oct 27 | 6b |
| 43430 | Genoa | Apr 20 | Oct 27 | 6b |
| 43432 | Apr 20 | Oct 27 | 6b | |
| 43433 | Apr 10 | Nov 5 | 6b | |
| 43436 | Apr 10 | Nov 5 | 7a | |
| 43439 | Apr 26 | Oct 23 | 6b | |
| 43440 | Marblehead | Apr 10 | Nov 5 | 6b |
| 43445 | Apr 20 | Oct 27 | 6b | |
| 43446 | Apr 10 | Nov 5 | 7a | |
| 43449 | Oak Harbor | Apr 26 | Oct 23 | 6b |
| 43452 | Port Clinton | Apr 10 | Nov 5 | 6b |
| 43456 | Put-in-Bay | Apr 10 | Nov 5 | 7a |
| 43458 | Rocky Ridge | Apr 20 | Oct 27 | 6b |
| 43468 | Williston | Apr 20 | Oct 27 | 6b |
Nearby counties
Sandusky County Erie County Lucas County Seneca County Wood County Huron County
All Ohio counties · Download Ohio frost dates (CSV)
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