Dennison, PA has a humid continental climate with hot summers and cold winters. The average summer temperatures range from 65-85°F while the average winter temperatures range from 25-45°F. Winter months generally bring snowfall and the occasional freezing rain. The area gets around 35 inches of precipitation per year spread out over the seasons, with most of it occurring during the warm summer months. Thunderstorms are common during the warmer months as well.
Dennison, Pennsylvania gets 47 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Dennison averages 39 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 176 sunny days per year in Dennison. The US average is 205 sunny days.
Dennison gets some kind of precipitation, on average, 125 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 82 degrees
Winter Low: the January low is 16
Rain: averages 47 inches of rain a year
Snow: averages 39 inches of snow a year