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Frost dates across Wisconsin

Typical last spring frost, first fall frost, and USDA zone for 4 Wisconsin cities, from 30-year NOAA climate normals. Every date is a 50 percent odds line, not a promise. Pick a city for the full frost window and what is plantable there now.

Last spring frost, first fall frost, season length, and USDA zone by city in Wisconsin
CityLast spring frostFirst fall frostSeason lengthZone
MilwaukeeApr 26Oct 22about 179 days6a
MadisonMay 1Oct 9about 161 days5b
Green BayApr 30Oct 9about 162 days5b
KenoshaApr 19Oct 26about 190 days6a

Row & Bed is a plant reference built around your garden: your zone, your frost dates, your forecast, and a cited page for every variety in your beds.

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