Geneseo, IL has a typical midwestern climate with four distinct seasons. Summers are generally hot and humid, with temperatures reaching up to the upper 80's during the day. Winters can be cold and snowy, with temperatures often dipping below freezing for prolonged periods of time. Spring is mild and wet, while autumn typically brings cooler temperatures and abundant rainfall. The area also sees an average of 36 inches of snowfall each year.
Geneseo, Illinois gets 37 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Geneseo averages 29 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 199 sunny days per year in Geneseo. The US average is 205 sunny days.
Geneseo gets some kind of precipitation, on average, 109 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 15
Rain: averages 37 inches of rain a year
Snow: averages 29 inches of snow a year