Allen, PA has a humid continental climate with four distinct seasons. Summers are hot and humid with average high temperatures in the mid 80's. Winters are cold with average low temperatures in the mid 20's. Fall and spring have mild temperatures and moderate rainfall throughout the season. Snowfall is common during winter months, but not excessive by any means. Overall, Allen has very pleasant weather year-round, making it an ideal destination for both outdoor recreation and relaxation.
Allen, Pennsylvania gets 47 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Allen averages 31 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 204 sunny days per year in Allen. The US average is 205 sunny days.
Allen gets some kind of precipitation, on average, 116 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 85 degrees
Winter Low: the January low is 18
Rain: averages 47 inches of rain a year
Snow: averages 31 inches of snow a year