Hillsdale, IL has a humid continental climate. It experiences hot summers and cold winters, with temperatures falling below 0°F occasionally throughout the winter months. The average yearly temperature ranges from 26°F to 78°F. Rainfall is quite abundant during the spring and summer months, averaging around 36 inches per year, while snowfall tends to be lower ranging from 15-20 inches per year. The humidity levels are usually high in the summer months, but lows can be seen during the winter season.
Hillsdale, Illinois gets 36 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Hillsdale averages 29 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 Hillsdale. The US average is 205 sunny days.
Hillsdale 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 36 inches of rain a year
Snow: averages 29 inches of snow a year