Washington County is situated in the foothills of the Appalachian Mountains in southwestern Pennsylvania. The county experiences four distinct seasons, with hot and humid summers. Average temperatures during the summer months range from 75 to 85 degrees Fahrenheit, while winter temperatures average between 25 and 45 degrees Fahrenheit. Precipitation levels vary throughout the year but tend to be greater in spring and summer. Snowfall usually occurs between December and February, providing a picturesque winter landscape. Washington County enjoys plenty of sunshine year-round, with an average of 210 days of sun annually.
Washington County, Pennsylvania gets 39 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Washington County averages 25 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 Washington County. The US average is 205 sunny days.
Washington County 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 83 degrees
Winter Low: the January low is 20
Rain: averages 39 inches of rain a year
Snow: averages 25 inches of snow a year