West St. Clair, PA has a humid continental climate characterized by warm summers and cold winters. It experiences an average of 198 days of sunshine per year and receives 42 inches of rainfall annually. The area is most known for relatively mild temperatures throughout the year as well as its frequent snowfall during the winter months. Average summer temperatures range between 70-80 degrees, while winters tend to stay below freezing with lows often dipping into the single digits. The area also typically sees some form of precipitation on around 130 days each year, so residents need to be prepared for a variety of weather patterns all year round.
West St. Clair, Pennsylvania gets 38 inches of rain, on average, per year. The US average is 38 inches of rain per year.
West St. Clair 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 West St. Clair. The US average is 205 sunny days.
West St. Clair gets some kind of precipitation, on average, 136 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 84 degrees
Winter Low: the January low is 20
Rain: averages 38 inches of rain a year
Snow: averages 36 inches of snow a year