Frost dates · Wisconsin
Wisconsin counties by frost timing.
Latest at top, earliest at bottom. In most states this matches the north-to-south gradient.
Sorted by spring frost
Latest → earliest.
Rusk County
Spring May 15·Fall Oct 1139-day season
Marinette County
Spring May 14·Fall Oct 3142-day season
Oneida County
Spring May 13·Fall Oct 2142-day season
Florence County
Spring May 11·Fall Oct 6148-day season
Price County
Spring May 9·Fall Oct 3147-day season
Bayfield County
Spring May 8·Fall Oct 9154-day season
Iron County
Spring May 8·Fall Oct 8153-day season
Vilas County
Spring May 8·Fall Oct 12157-day season
Forest County
Spring May 6·Fall Oct 9156-day season
Sawyer County
Spring May 6·Fall Oct 5152-day season
Ashland County
Spring May 5·Fall Oct 12160-day season
Juneau County
Spring May 5·Fall Oct 3151-day season
Lincoln County
Spring May 2·Fall Oct 10161-day season
Menominee County
Spring May 2·Fall Oct 13164-day season
Oconto County
Spring May 2·Fall Oct 13164-day season
Pierce County
Spring May 2·Fall Oct 8159-day season
Washburn County
Spring May 2·Fall Oct 7158-day season
Door County
Spring May 1·Fall Nov 1184-day season
Langlade County
Spring May 1·Fall Oct 11163-day season
Taylor County
Spring May 1·Fall Oct 11163-day season
Burnett County
Spring Apr 30·Fall Oct 9162-day season
Clark County
Spring Apr 30·Fall Oct 10163-day season
Douglas County
Spring Apr 30·Fall Oct 13166-day season
Dunn County
Spring Apr 30·Fall Oct 10163-day season
Jackson County
Spring Apr 30·Fall Oct 10163-day season
Shawano County
Spring Apr 30·Fall Oct 13166-day season
Trempealeau County
Spring Apr 30·Fall Oct 8161-day season
Waushara County
Spring Apr 30·Fall Oct 14167-day season
Adams County
Spring Apr 29·Fall Oct 13167-day season
Monroe County
Spring Apr 29·Fall Oct 11165-day season
Wood County
Spring Apr 29·Fall Oct 12166-day season
Barron County
Spring Apr 28·Fall Oct 11166-day season
Green Lake County
Spring Apr 28·Fall Oct 12167-day season
Waupaca County
Spring Apr 28·Fall Oct 17172-day season
Polk County
Spring Apr 27·Fall Oct 16172-day season
Vernon County
Spring Apr 27·Fall Oct 13169-day season
Eau Claire County
Spring Apr 26·Fall Oct 11168-day season
Marathon County
Spring Apr 26·Fall Oct 16173-day season
St. Croix County
Spring Apr 26·Fall Oct 12169-day season
Portage County
Spring Apr 25·Fall Oct 19177-day season
Richland County
Spring Apr 25·Fall Oct 17175-day season
Crawford County
Spring Apr 24·Fall Oct 18177-day season
Kewaunee County
Spring Apr 23·Fall Nov 1192-day season
Lafayette County
Spring Apr 23·Fall Oct 16176-day season
Marquette County
Spring Apr 23·Fall Oct 16176-day season
Outagamie County
Spring Apr 23·Fall Oct 18178-day season
Calumet County
Spring Apr 22·Fall Oct 27188-day season
Iowa County
Spring Apr 22·Fall Oct 18179-day season
Ozaukee County
Spring Apr 22·Fall Oct 25186-day season
Washington County
Spring Apr 22·Fall Oct 24185-day season
Chippewa County
Spring Apr 21·Fall Oct 20182-day season
Fond du Lac County
Spring Apr 21·Fall Oct 23185-day season
Dane County
Spring Apr 20·Fall Oct 20183-day season
Dodge County
Spring Apr 20·Fall Oct 21184-day season
Pepin County
Spring Apr 20·Fall Oct 22185-day season
Waukesha County
Spring Apr 19·Fall Oct 23187-day season
Brown County
Spring Apr 17·Fall Oct 24190-day season
Buffalo County
Spring Apr 17·Fall Oct 26192-day season
Columbia County
Spring Apr 16·Fall Oct 22189-day season
Grant County
Spring Apr 16·Fall Oct 22189-day season
La Crosse County
Spring Apr 16·Fall Oct 25192-day season
Green County
Spring Apr 15·Fall Oct 25193-day season
Jefferson County
Spring Apr 15·Fall Oct 29197-day season
Kenosha County
Spring Apr 15·Fall Oct 30198-day season
Rock County
Spring Apr 15·Fall Oct 26194-day season
Walworth County
Spring Apr 15·Fall Oct 25193-day season
Manitowoc County
Spring Apr 14·Fall Nov 1201-day season
Sauk County
Spring Apr 13·Fall Oct 31201-day season
Sheboygan County
Spring Apr 13·Fall Nov 1202-day season
Winnebago County
Spring Apr 13·Fall Oct 31201-day season
Racine County
Spring Apr 11·Fall Nov 4207-day season
Milwaukee County
Spring Apr 9·Fall Nov 5210-day season
Alphabetical · A to Z
- Adams County
- Ashland County
- Barron County
- Bayfield County
- Brown County
- Buffalo County
- Burnett County
- Calumet County
- Chippewa County
- Clark County
- Columbia County
- Crawford County
- Dane County
- Dodge County
- Door County
- Douglas County
- Dunn County
- Eau Claire County
- Florence County
- Fond du Lac County
- Forest County
- Grant County
- Green County
- Green Lake County
- Iowa County
- Iron County
- Jackson County
- Jefferson County
- Juneau County
- Kenosha County
- Kewaunee County
- La Crosse County
- Lafayette County
- Langlade County
- Lincoln County
- Manitowoc County
- Marathon County
- Marinette County
- Marquette County
- Menominee County
- Milwaukee County
- Monroe County
- Oconto County
- Oneida County
- Outagamie County
- Ozaukee County
- Pepin County
- Pierce County
- Polk County
- Portage County
- Price County
- Racine County
- Richland County
- Rock County
- Rusk County
- Sauk County
- Sawyer County
- Shawano County
- Sheboygan County
- St. Croix County
- Taylor County
- Trempealeau County
- Vernon County
- Vilas County
- Walworth County
- Washburn County
- Washington County
- Waukesha County
- Waupaca County
- Waushara County
- Winnebago County
- Wood County