Williams Bay Wisconsin Climate Data

Monthly Average Climate Data for Williams Bay Wisconsin

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-10.4 °C-1.8 °C46.23 mm
February-8.9 °C0.4 °C45.47 mm
March-3.7 °C6.8 °C55.88 mm
April2 °C14.1 °C95.76 mm
May8.5 °C20.6 °C110.24 mm
June13.8 °C25.9 °C139.95 mm
July16.2 °C28.1 °C92.46 mm
August15.2 °C27.2 °C103.38 mm
September10.8 °C23.6 °C91.69 mm
October4.6 °C16.2 °C75.44 mm
November-1.4 °C8 °C60.2 mm
December-7.2 °C1.1 °C51.82 mm
Annual3.3 °C14.2 °C968.52 mm

Climate Data for Williams Bay Wisconsin

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 21 - May 31
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 5b : -26.1°C to -23.3°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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