Last frost dates in Wisconsin

Typical last frost
April 28

That is the date for the typical Wisconsin resident, weighted by city population. Across the state the average last frost runs from April 19 to May 7, so look up your own town below.

Earliest city
Apr 19
Latest city
May 7
Typical first frost
Oct 15
Cities
43
This week in Wisconsin

Frost in the forecast for 1 of 43 cities

National Weather Service forecast, updated Oct 22, 11:10 UTC

May 1Apr 15NSMilwaukee: Apr 26MilwaukeeMadison: May 1MadisonGreen Bay: May 7Green BayKenosha: Apr 28KenoshaRacine: Apr 20RacineAppleton: May 4AppletonEau Claire: Apr 24Eau ClaireWaukesha: May 1Oshkosh: Apr 24Janesville: Apr 26West Allis: Apr 26La Crosse: Apr 27Sheboygan: Apr 25Wauwatosa: Apr 26Fond du Lac: Apr 27Brookfield: Apr 30Menomonee Falls: May 6Wausau: May 6New Berlin: May 3Sun Prairie: May 1Oak Creek: Apr 22Greenfield: May 3Franklin: May 3Beloit: May 1Manitowoc: Apr 30Fitchburg: May 1West Bend: May 1Mount Pleasant: Apr 20Neenah: May 4Superior: May 6Stevens Point: May 4Muskego: May 3De Pere: Apr 30Caledonia: Apr 24Mequon: May 6Middleton: Apr 28Watertown: Apr 28Howard: May 7Pleasant Prairie: Apr 19Germantown: May 6Onalaska: Apr 23South Milwaukee: Apr 22Oconomowoc: Apr 30
Each dot is a city: further right means a later last frost, higher up means further north. Bigger dots are bigger cities.

Frost dates by city

CityLast frostSafe afterFirst frostSeason
MilwaukeeApr 26May 12Oct 18173 days
MadisonMay 1May 17Oct 9161 days
Green BayMay 7May 22Oct 9154 days
KenoshaApr 28May 13Oct 19174 days
RacineApr 20May 6Oct 24184 days
AppletonMay 4May 20Oct 6154 days
Eau ClaireApr 24May 7Oct 14170 days
WaukeshaMay 1May 18Oct 13162 days
OshkoshApr 24May 8Oct 20178 days
JanesvilleApr 26May 11Oct 15170 days
West AllisApr 26May 12Oct 22177 days
La CrosseApr 27May 12Oct 13167 days
SheboyganApr 25May 11Oct 23179 days
WauwatosaApr 26May 12Oct 18173 days
Fond du LacApr 27May 11Oct 19174 days
BrookfieldApr 30May 15Oct 14164 days
Menomonee FallsMay 6May 25Oct 8154 days
WausauMay 6May 21Oct 4150 days
New BerlinMay 3May 19Oct 14162 days
Sun PrairieMay 1May 16Oct 10160 days
Oak CreekApr 22May 8Oct 26184 days
GreenfieldMay 3May 19Oct 14162 days
FranklinMay 3May 19Oct 14162 days
BeloitMay 1May 16Oct 12162 days
ManitowocApr 30May 15Oct 20171 days
FitchburgMay 1May 17Oct 9161 days
West BendMay 1May 18Oct 12161 days
Mount PleasantApr 20May 6Oct 24184 days
NeenahMay 4May 20Oct 6154 days
SuperiorMay 6May 25Oct 9154 days
Stevens PointMay 4May 20Oct 7155 days
MuskegoMay 3May 19Oct 14162 days
De PereApr 30May 16Oct 9161 days
CaledoniaApr 24May 10Oct 24180 days
MequonMay 6May 25Oct 8154 days
MiddletonApr 28May 11Oct 15169 days
WatertownApr 28May 13Oct 12167 days
HowardMay 7May 22Oct 9154 days
Pleasant PrairieApr 19May 3Oct 26189 days
GermantownMay 6May 25Oct 8154 days
OnalaskaApr 23May 6Oct 17177 days
South MilwaukeeApr 22May 8Oct 26184 days
OconomowocApr 30May 17Oct 12164 days

When to plant in Wisconsin

Questions

When is the last frost in Wisconsin?

It depends on where you are. Across the 43 cities we track, the average last frost runs from April 19 to May 7. In Milwaukee, the largest, it is April 26.

When is the first frost in Wisconsin?

For a typical resident, around October 15. Higher and more northern towns get it earlier.