Cissna Park, IL has a humid continental climate. Summers tend to be hot and humid with temperatures often reaching the low 80s Fahrenheit during the day. The warmest month is July, with an average high temperature of 85 degrees Fahrenheit. Winters in Cissna Park are cold with temperatures dropping as low as 15 degrees Fahrenheit at night. Snowfall is common throughout the winter months with an annual snowfall of around 30 inches. Spring and fall are mild with temperatures ranging from the mid-50s to the mid-70s depending on the season.
Cissna Park, Illinois gets 39 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Cissna Park averages 18 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 186 sunny days per year in Cissna Park. The US average is 205 sunny days.
Cissna Park gets some kind of precipitation, on average, 108 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 16
Rain: averages 39 inches of rain a year
Snow: averages 18 inches of snow a year