Wisconsin frost dates
Median last spring frost and first fall frost for 753 places in Wisconsin. Last frost ranges from Apr 19 in Cuba City to Jun 4 in Long Lake.
Largest cities
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Milwaukee | Apr 26 | Oct 22 | 179 d | 6a |
| Madison | May 1 | Oct 9 | 161 d | 5b |
| Green Bay | Apr 30 | Oct 9 | 162 d | 5b |
| Kenosha | Apr 19 | Oct 26 | 190 d | 6a |
| Racine | Apr 20 | Oct 24 | 187 d | 6a |
| Appleton | May 4 | Oct 6 | 155 d | 5b |
| Waukesha | May 1 | Oct 13 | 165 d | 5b |
| Eau Claire | Apr 24 | Oct 14 | 173 d | 4b |
| Oshkosh | Apr 24 | Oct 20 | 179 d | 5b |
| Janesville | Apr 26 | Oct 15 | 172 d | 5b |
| La Crosse | Apr 27 | Oct 13 | 169 d | 5a |
| Sheboygan | Apr 25 | Oct 23 | 181 d | 6a |
| Fond Du Lac | May 1 | Oct 10 | 162 d | 5b |
| New Berlin | May 3 | Oct 14 | 164 d | 5b |
| Wausau | May 6 | Oct 4 | 151 d | 4b |
| Brookfield | Apr 30 | Oct 14 | 167 d | 5b |
| Beloit | May 1 | Oct 12 | 164 d | 5b |
| Franklin | May 3 | Oct 14 | 164 d | 5b |
| Menomonee Falls | May 6 | Oct 8 | 155 d | 5b |
| Oak Creek | Apr 22 | Oct 26 | 187 d | 6a |
| Manitowoc | Apr 30 | Oct 20 | 173 d | 5b |
| Sun Prairie | May 1 | Oct 10 | 162 d | 5a |
| West Bend | May 1 | Oct 12 | 164 d | 5b |
| Stevens Point | May 4 | Oct 7 | 156 d | 5a |
| Superior | May 6 | Oct 9 | 156 d | 4b |
| Neenah | May 4 | Oct 6 | 155 d | 5b |
| Muskego | May 3 | Oct 14 | 164 d | 5b |
| De Pere | Apr 30 | Oct 9 | 162 d | 5b |
| Caledonia | Apr 22 | Oct 26 | 187 d | 5b |
| Watertown | Apr 28 | Oct 12 | 167 d | 5a |
| Mequon | Apr 23 | Oct 24 | 184 d | 5b |
| South Milwaukee | Apr 22 | Oct 26 | 187 d | 6a |
| Pleasant Prairie | Apr 19 | Oct 26 | 190 d | 5b |
| Germantown | May 6 | Oct 8 | 155 d | 5b |
| Middleton | Apr 28 | Oct 15 | 170 d | 5a |
| Marshfield | May 5 | Oct 5 | 153 d | 4b |
| Onalaska | Apr 23 | Oct 17 | 177 d | 5a |
| Cudahy | Apr 19 | Oct 29 | 193 d | 6a |
| Wisconsin Rapids | May 8 | Oct 1 | 146 d | 4b |
| Menasha | May 4 | Oct 6 | 155 d | 5b |