Princeton, IL has a humid continental climate with cold winters and hot summers. The average annual temperature is around 54°F (12°C). Summers typically have temperatures that reach into the 80s, while winter temperatures can dip below freezing. Precipitation in Princeton is fairly average, with an average of 37 inches per year. Snowfall during the winter months can range from a few inches to more than a foot. The area sees its fair share of thunderstorms during the summer months, but overall the climate in Princeton is mild and enjoyable.
Princeton, Illinois gets 37 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Princeton averages 25 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 194 sunny days per year in Princeton. The US average is 205 sunny days.
Princeton gets some kind of precipitation, on average, 93 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 14
Rain: averages 37 inches of rain a year
Snow: averages 25 inches of snow a year