Frost dates in Ozaukee County, Wisconsin
The average last spring frost in Ozaukee County falls Apr 23 to May 5 and the average first fall frost Oct 11 to Oct 24, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 5b to 6a. Places: Belgium, Cedarburg, Fredonia, Grafton, Mequon, Port Washington. 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 |
|---|---|---|---|---|
| 53004 | Belgium | May 5 | Oct 12 | 5b |
| 53012 | Cedarburg | Apr 23 | Oct 24 | 5b |
| 53021 | Fredonia | May 5 | Oct 12 | 5b |
| 53024 | Grafton | Apr 23 | Oct 24 | 6a |
| 53074 | Port Washington | Apr 27 | Oct 22 | 5b |
| 53080 | Saukville | May 5 | Oct 11 | 5b |
| 53092 | Mequon | Apr 23 | Oct 24 | 6a |
| 53097 | Mequon | Apr 23 | Oct 24 | 5b |
Nearby counties
Washington County Sheboygan County Milwaukee County Waukesha County Dodge County Fond du Lac County
All Wisconsin counties · Download Wisconsin frost dates (CSV)
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