The climate in 62450 Olney, IL is generally mild throughout the year. Summers often reach temperatures of up to 90 degrees Fahrenheit during the day while winter lows can dip into the teens or single digits. Rainfall averages around 42 inches per year and snowfall can range from a trace amount to up to 15 inches annually depending on the season. Humidity levels tend to stay consistently moderate with an average dew point of around 55 degrees Fahrenheit. Despite weather extremes occasionally occurring due to seasonal changes, Olney enjoys comfortable conditions year-round that make it an ideal place for outdoor activities and relaxation.
Olney (zip 62450), Illinois gets 45 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Olney (zip 62450) averages 12 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 Olney (zip 62450). The US average is 205 sunny days.
Olney (zip 62450) 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 87 degrees
Winter Low: the January low is 20
Rain: averages 45 inches of rain a year
Snow: averages 12 inches of snow a year