Allegheny County, PA has a humid continental climate with warm summers and cold winters. In the summertime, temperatures range from the mid-70s to the mid-80s Fahrenheit, while in winter, temperatures can drop as low as the teens. Precipitation levels are fairly consistent throughout the year, with an average of 36 inches of rain annually, and an average snowfall of 29 inches. The area also experiences frequent thunderstorms during the warmer months. Humidity levels are typically high year round due to its proximity to Lake Erie and other major bodies of water.
Allegheny County, Pennsylvania gets 39 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Allegheny County averages 27 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 Allegheny County. The US average is 205 sunny days.
Allegheny County gets some kind of precipitation, on average, 142 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 21
Rain: averages 39 inches of rain a year
Snow: averages 27 inches of snow a year