Hillsboro, IL has a temperate climate that is typical of the Midwest United States. In the summer months, temperatures rise into the 80s and occasionally into the 90s with high humidity levels, while in the winter temperatures typically range between the mid-30s and mid-40s with occasional snowfall. The area also experiences rainfall throughout the year, which helps keep its lush landscape green and vibrant. Overall, Hillsboro has a pleasant climate that makes it a great place to live or visit.
Hillsboro, Illinois gets 40 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Hillsboro averages 15 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 Hillsboro. The US average is 205 sunny days.
Hillsboro gets some kind of precipitation, on average, 99 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 15 inches of snow a year