15317 Canonsburg, PA has a humid continental climate with hot, humid summers and cold, snowy winters. The average temperature in the summer months ranges from 65 to 86 degrees Fahrenheit while the winter temperatures range from the mid-teens to mid-thirties. Yearly precipitation is around 40 inches, most of which falls during the summer months. Snowfall typically begins in late November and can continue through March. Spring and fall are generally mild with lower humidity than summer and occasional rainstorms.
Canonsburg (zip 15317), Pennsylvania gets 39 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Canonsburg (zip 15317) averages 29 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 162 sunny days per year in Canonsburg (zip 15317). The US average is 205 sunny days.
Canonsburg (zip 15317) gets some kind of precipitation, on average, 148 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 82 degrees
Winter Low: the January low is 20
Rain: averages 39 inches of rain a year
Snow: averages 29 inches of snow a year