Wilmette, IL has a humid continental climate that experiences four distinct seasons. Summers in Wilmette are generally warm and humid with plenty of sunshine; temperatures regularly reach the high-80s (°F). Winters in Wilmette can be very cold and snowy, with temperatures often reaching into the single digits and below zero (°F). Spring and fall are milder but still quite variable - temperatures can range from the high-30s to mid-60s (°F) throughout these seasons. Precipitation is moderate year-round, with around 40 inches of rainfall per year.
Wilmette, Illinois gets 36 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Wilmette averages 36 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 190 sunny days per year in Wilmette. The US average is 205 sunny days.
Wilmette gets some kind of precipitation, on average, 125 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 83 degrees
Winter Low: the January low is 17
Rain: averages 36 inches of rain a year
Snow: averages 36 inches of snow a year