Wauwatosa Wisconsin Climate Data

Monthly Average Climate Data for Wauwatosa Wisconsin

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-9.8 °C-1.4 °C43.18 mm
February-8.2 °C0.6 °C42.42 mm
March-3.2 °C6.4 °C50.29 mm
April2.5 °C13 °C100.08 mm
May8.5 °C19.6 °C99.57 mm
June14.1 °C25.2 °C120.9 mm
July17.2 °C28 °C91.44 mm
August16.5 °C27.2 °C92.71 mm
September12 °C23.3 °C80.77 mm
October5.6 °C16.2 °C70.36 mm
November-0.7 °C8.3 °C52.83 mm
December-6.3 °C1.6 °C51.31 mm
Annual4 °C14 °C895.86 mm

Climate Data for Wauwatosa Wisconsin

Average First Frost DateOct. 11 - Oct. 20
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 ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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