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Frost dates in Portage County, Wisconsin

Wooded bluffs along the shore of Devil's Lake, Wisconsin
Photo: Collette Hinz, CC BY-SA 4.0, via Wikimedia Commons

The average last spring frost in Portage County falls May 4 to May 10 and the average first fall frost Oct 3 to Oct 7, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 4b to 5a. Places: Almond, Amherst, Amherst Junction, Bancroft, Junction City, Nelsonville. Pick a ZIP for 10% and 90% odds, soil temperature and the 7-day freeze forecast.

ZIPPlaceLast spring frostFirst fall frostZone
54406AmherstMay 8Oct 65a
54407Amherst JunctionMay 4Oct 75a
54423PoloniaMay 4Oct 74b
54443Junction CityMay 4Oct 74b
54458NelsonvilleMay 4Oct 75a
54467PloverMay 4Oct 74b
54473RosholtMay 6Oct 54b
54481Stevens PointMay 4Oct 75a
54482Stevens PointMay 4Oct 74b
54909AlmondMay 10Oct 34b
54921BancroftMay 10Oct 34b

Nearby counties

Waupaca County Wood County Waushara County Marathon County Adams County Shawano County

All Wisconsin counties · Download Wisconsin frost dates (CSV)