Waterloo, IL has a typical Midwestern climate with four distinct seasons and plenty of sunshine throughout the year. In the summer months temperatures are generally warm with highs in the 80s and lows in the 60s. In the winter, temperatures can get quite cold with lows dipping into the teens and 20s. Spring and fall offer mild temperatures with highs in the 50s and 60s. Rainfall is spread evenly throughout the year, but snowfall is most common during winter months. Overall, Waterloo has a comfortable climate that offers plenty of sunshine for all to enjoy.
Waterloo (zip 62298), Illinois gets 43 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Waterloo (zip 62298) averages 12 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 202 sunny days per year in Waterloo (zip 62298). The US average is 205 sunny days.
Waterloo (zip 62298) gets some kind of precipitation, on average, 100 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 88 degrees
Winter Low: the January low is 22
Rain: averages 43 inches of rain a year
Snow: averages 12 inches of snow a year