Clear Lake, IA has a humid continental climate marked by warm summers and cold winters. Average summer temperatures reach into the high 70s and low 80s (Fahrenheit) while winter temperatures can drop to below zero in January. Clear Lake receives an average of 34 inches of precipitation annually, most of which falls between May and September in the form of rain, thunderstorms, snow, and ice. The area also experiences moderate levels of fog throughout the year.
Clear Lake (zip 50428), Iowa gets 35 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Clear Lake (zip 50428) averages 38 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 188 sunny days per year in Clear Lake (zip 50428). The US average is 205 sunny days.
Clear Lake (zip 50428) gets some kind of precipitation, on average, 104 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 7
Rain: averages 35 inches of rain a year
Snow: averages 38 inches of snow a year