Seneca, IL is located in the northern part of the state and experiences a humid continental climate with four distinct seasons. Summers are hot and humid, while winters are cold with temperatures occasionally dropping below freezing. The region receives an average of 42 inches of precipitation annually, mostly in the form of snow during winter months. Spring and fall are generally pleasant, with mild daytime temperatures and cool nights. Overall, temperatures remain relatively consistent throughout the year due to its location near Lake Michigan.
Seneca (zip 61360), Illinois gets 37 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Seneca (zip 61360) averages 23 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 190 sunny days per year in Seneca (zip 61360). The US average is 205 sunny days.
Seneca (zip 61360) gets some kind of precipitation, on average, 114 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 15
Rain: averages 37 inches of rain a year
Snow: averages 23 inches of snow a year