Brighton, IL has a humid continental climate, characterized by four distinct seasons. Summers are hot and humid, with temperatures in the mid to upper 80s and plenty of rainfall. Winters are cold and snowy, with temperatures ranging from the low 20s to the low 40s. Spring and fall tend to be milder but often bring large amounts of rain. Overall, Brighton experiences relatively mild weather with fluctuations between all four seasons.
Brighton, Illinois gets 40 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Brighton averages 14 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 Brighton. The US average is 205 sunny days.
Brighton gets some kind of precipitation, on average, 102 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 88 degrees
Winter Low: the January low is 20
Rain: averages 40 inches of rain a year
Snow: averages 14 inches of snow a year