Frost dates in Winona County, Minnesota
The average last spring frost in Winona County falls Apr 21 to May 8 and the average first fall frost Oct 3 to Oct 19, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 4b to 5a. Places: Altura, Dakota, Lewiston, Minnesota City, Rollingstone, St. Charles. 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 |
|---|---|---|---|---|
| 55910 | Altura | Apr 23 | Oct 16 | 4b |
| 55925 | Dakota | Apr 29 | Oct 11 | 5a |
| 55952 | Lewiston | May 8 | Oct 3 | 4b |
| 55959 | Minnesota City | Apr 23 | Oct 16 | 4b |
| 55969 | Rollingstone | Apr 23 | Oct 16 | 4b |
| 55972 | St. Charles | Apr 23 | Oct 16 | 4b |
| 55979 | Utica | May 8 | Oct 3 | 4b |
| 55987 | Winona | Apr 21 | Oct 19 | 5a |
Nearby counties
Fillmore County Wabasha County Olmsted County Houston County Dodge County Mower County
All Minnesota counties · Download Minnesota frost dates (CSV)
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