Buffalo, IL has a humid continental climate with hot, humid summers and cold winters. The area is characterized by generally mild temperatures throughout the year, but experiences wide variations in weather due to its location on the Great Plains. Summertime temperatures range from highs in the mid-80’s to lows in the upper-60’s, while wintertime lows dip into the low-teens overnight and highs reach into the high-30’s during the day. Precipitation amounts are fairly average for Illinois, with an average of 38 inches per year.
Buffalo (zip 62515), Illinois gets 38 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Buffalo (zip 62515) averages 17 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 198 sunny days per year in Buffalo (zip 62515). The US average is 205 sunny days.
Buffalo (zip 62515) gets some kind of precipitation, on average, 103 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 18
Rain: averages 38 inches of rain a year
Snow: averages 17 inches of snow a year