Jerseyville, IL has a humid continental climate with four distinct seasons. Summers are hot and humid with temperatures typically reaching the mid-80s, while winters are cold and dry with temperatures often dipping below freezing. Spring and fall are milder with temperatures ranging between the mid-50s and low 70s. The area receives an average of 41 inches of precipitation throughout the year, most of which occurs in the spring and summer due to frequent thunderstorms.
Jerseyville (zip 62052), Illinois gets 40 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Jerseyville (zip 62052) averages 16 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 202 sunny days per year in Jerseyville (zip 62052). The US average is 205 sunny days.
Jerseyville (zip 62052) gets some kind of precipitation, on average, 98 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 87 degrees
Winter Low: the January low is 20
Rain: averages 40 inches of rain a year
Snow: averages 16 inches of snow a year