Frost dates in Union County, Ohio
The average last spring frost in Union County falls Apr 19 to Apr 26 and the average first fall frost Oct 20 to Oct 26, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 6a to 6b. Places: Magnetic Springs, Marysville, Milford Center, Raymond, Richwood, Unionville Center. 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 |
|---|---|---|---|---|
| 43007 | Apr 19 | Oct 26 | 6a | |
| 43036 | Magnetic Springs | Apr 19 | Oct 26 | 6b |
| 43040 | Marysville | Apr 19 | Oct 26 | 6a |
| 43045 | Milford Center | Apr 19 | Oct 26 | 6a |
| 43067 | Raymond | Apr 26 | Oct 20 | 6a |
| 43077 | Unionville Center | Apr 19 | Oct 26 | 6a |
| 43344 | Richwood | Apr 19 | Oct 26 | 6a |
| 43358 | West Mansfield | Apr 26 | Oct 20 | 6a |
Nearby counties
Logan County Delaware County Marion County Champaign County Madison County Hardin County
All Ohio counties · Download Ohio frost dates (CSV)
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