61561 Roanoke, IL enjoys a humid continental climate with warm summers and cold winters. July is the hottest month of the year, with average temperatures reaching into the upper 80s and even low 90s. Winters are cold with average temperatures dipping as low as single digits in January and February. Rainfall is fairly steady throughout the year, peaking in June and July where rainfall can reach up to 4 inches each month. Snowfall is also common in winter months, usually ranging from 3 - 5 inches in December through March.
Roanoke (zip 61561), Illinois gets 38 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Roanoke (zip 61561) averages 20 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 Roanoke (zip 61561). The US average is 205 sunny days.
Roanoke (zip 61561) 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 86 degrees
Winter Low: the January low is 15
Rain: averages 38 inches of rain a year
Snow: averages 20 inches of snow a year