Kewanee, IL has a humid continental climate with hot summers and cold winters. The average high temperature in the summer is around 80 degrees Fahrenheit and the average low temperature in the winter is around 20 degrees Fahrenheit. Precipitation levels are relatively moderate throughout the year, with around 40 inches of rain and snow combined on an annual basis. The area also experiences frequent thunderstorms throughout the spring and summer months. Winters are usually mild with occasional snowfall that rarely accumulates more than a few inches at a time.
Kewanee, Illinois gets 37 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Kewanee averages 23 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 201 sunny days per year in Kewanee. The US average is 205 sunny days.
Kewanee gets some kind of precipitation, on average, 105 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 84 degrees
Winter Low: the January low is 13
Rain: averages 37 inches of rain a year
Snow: averages 23 inches of snow a year