St. Clairsville, PA has a humid continental climate with hot, humid summers and cold winters. Average temperatures in summer range from 68 to 81 degrees Fahrenheit (20-27 Celsius). During winter months, average temperatures range from 28 to 39 degrees Fahrenheit (-2 to 4 Celsius). St. Clairsville receives an average of 38 inches of rain per year and approximately 61 inches of snow annually. Precipitation is generally evenly distributed throughout the year with peak periods occurring in late spring and early fall. The area experiences four distinct seasons with long stretches of mild days between bouts of more extreme weather.
St. Clairsville, Pennsylvania gets 38 inches of rain, on average, per year. The US average is 38 inches of rain per year.
St. Clairsville averages 36 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 189 sunny days per year in St. Clairsville. The US average is 205 sunny days.
St. Clairsville gets some kind of precipitation, on average, 133 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 83 degrees
Winter Low: the January low is 19
Rain: averages 38 inches of rain a year
Snow: averages 36 inches of snow a year