Port Washington Wisconsin Climate Data

Monthly Average Climate Data for Port Washington Wisconsin

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-9.7 °C-1.7 °C44.96 mm
February-8.4 °C0.1 °C35.56 mm
March-3.4 °C5.2 °C45.97 mm
April2 °C11 °C92.46 mm
May7.7 °C17.3 °C98.3 mm
June13.3 °C22.9 °C99.57 mm
July16.7 °C26.2 °C96.27 mm
August16.3 °C25.6 °C102.11 mm
September12.2 °C21.7 °C76.2 mm
October5.8 °C14.8 °C67.31 mm
November-0.6 °C7.7 °C55.12 mm
December-6.2 °C1.4 °C45.72 mm
Annual3.8 °C12.7 °C859.55 mm

Climate Data for Port Washington Wisconsin

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 11 - May 20
Average Days With Frost100-125 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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