Milwaukee Wisconsin Climate Data

Monthly Average Climate Data for Milwaukee Wisconsin

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-8.7 °C-0.8 °C43.18 mm
February-7.3 °C0.8 °C40.64 mm
March-2.4 °C6.1 °C50.8 mm
April3 °C12.2 °C101.09 mm
May8.6 °C18.7 °C100.08 mm
June14.4 °C24.2 °C116.08 mm
July17.7 °C27.2 °C90.68 mm
August17.6 °C26.5 °C91.69 mm
September13.3 °C22.6 °C82.3 mm
October6.8 °C15.8 °C72.9 mm
November0.4 °C8.6 °C54.61 mm
December-5.3 °C2.1 °C50.04 mm
Annual4.8 °C13.7 °C894.09 mm

Climate Data for Milwaukee Wisconsin

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 11 - May 20
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 6a : -23.3°C to -20.6°C
Plant Hardiness Zone - 2012Zone 5b : -26.1°C to -23.3°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation