61530 Eureka, IL has a humid continental climate with four distinct seasons. Summers are hot and humid with temperatures averaging in the mid to upper 80s while winters are cold with temperatures dropping into the single digits on occasion. Precipitation is moderate year round with rain and snow both being common during winter months. Spring and fall tend to be mild and pleasant but can sometimes experience extreme weather events like thunderstorms or heavy snowfall.
Eureka (zip 61530), Illinois gets 39 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Eureka (zip 61530) averages 23 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 Eureka (zip 61530). The US average is 205 sunny days.
Eureka (zip 61530) 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 86 degrees
Winter Low: the January low is 15
Rain: averages 39 inches of rain a year
Snow: averages 23 inches of snow a year