Round Lake Park, IL enjoys a humid continental climate, characterized by moderately warm summers and cold, snowy winters. In summer, temperatures typically range between 70-80 degrees while in winter they can dip down to around 20 degrees. Precipitation is prevalent throughout the year with annual snowfall totals ranging from 18 to 25 inches. Overall, the climate in Round Lake Park is generally pleasant for outdoor activities and adventures.
Round Lake Park, Illinois gets 37 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Round Lake Park averages 43 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 192 sunny days per year in Round Lake Park. The US average is 205 sunny days.
Round Lake Park gets some kind of precipitation, on average, 121 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 14
Rain: averages 37 inches of rain a year
Snow: averages 43 inches of snow a year