Peru, IL has a humid continental climate, characterized by hot summers and cold winters. Summer days are often warm and humid with average temperatures reaching the mid-80s Fahrenheit (around 29°C). Winters are typically cold and windy, with an average low temperature of about 18°F (-8°C). Snowfall can be significant during the winter months, usually ranging from 10 to 20 inches each year. On average, Peru receives 40 inches of rain annually, making it an ideal destination for outdoor activities throughout all seasons.
Peru, Illinois gets 37 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Peru averages 22 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 191 sunny days per year in Peru. The US average is 205 sunny days.
Peru gets some kind of precipitation, on average, 115 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 85 degrees
Winter Low: the January low is 14
Rain: averages 37 inches of rain a year
Snow: averages 22 inches of snow a year