Watertown Wisconsin Climate Data

Monthly Average Climate Data for Watertown Wisconsin

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-11.6 °C-2.8 °C36.32 mm
February-10.3 °C-0.8 °C36.58 mm
March-4.3 °C5.9 °C49.02 mm
April2.1 °C13.4 °C92.96 mm
May8.5 °C20.3 °C103.89 mm
June14.2 °C25.7 °C135.64 mm
July16.4 °C27.8 °C108.97 mm
August15.3 °C26.8 °C102.62 mm
September10.8 °C23.1 °C86.11 mm
October4.4 °C15.7 °C74.68 mm
November-1.9 °C7.4 °C54.1 mm
December-7.8 °C0.3 °C43.94 mm
Annual3 °C13.6 °C924.83 mm

Climate Data for Watertown 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 5b : -26.1°C to -23.3°C
Plant Hardiness Zone - 2012Zone 5a : -28.9°C to -26.1°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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