Casselman, PA has a humid continental climate, which is characterized by cold winters and hot summers. The area experiences four distinct seasons with average high temperatures reaching up to 87 degrees Fahrenheit in the summer and dipping into the low 20s during winter. Precipitation is spread throughout the year with snowfall often occurring from November through March. Winters can be especially cold, with temperatures dropping below zero at times due to lake-effect snow coming off Lake Erie.
Casselman, Pennsylvania gets 45 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Casselman averages 76 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 156 sunny days per year in Casselman. The US average is 205 sunny days.
Casselman gets some kind of precipitation, on average, 164 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 79 degrees
Winter Low: the January low is 16
Rain: averages 45 inches of rain a year
Snow: averages 76 inches of snow a year