Waukesha, WI has a humid continental climate with four distinct seasons. Summers are warm and humid, with temperatures averaging in the mid-70s°F (23°C) during the day and upper-50s°F (15°C) at night. Winters are cold, with temperatures around 20°F (-7°C). Snowfall averages 45 inches (114 cm) per year, although this varies from year to year. Spring and fall are pleasant, with mild temperatures and moderate rainfall. Overall, Waukesha experiences an average of 194 days of sunshine per year!
Waukesha, Wisconsin gets 35 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Waukesha averages 43 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 189 sunny days per year in Waukesha. The US average is 205 sunny days.
Waukesha gets some kind of precipitation, on average, 121 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.
Weather Highlights
Summer High: the July high is around 82 degrees
Winter Low: the January low is 12
Rain: averages 35 inches of rain a year
Snow: averages 43 inches of snow a year