Duncan, PA has a humid continental climate with warm, humid summers and cold, snowy winters. The average annual temperature is 48 degrees Fahrenheit (9 degrees Celsius), while the average high in July is 81.3 degrees Fahrenheit (27.4 degrees Celsius). In January, the average low is 23.7 degrees Fahrenheit (-4.6 degrees Celsius). On average, Duncan receives 42 inches of precipitation per year, most of it in the form of rain and snowfall during the winter months.
Duncan, Pennsylvania gets 38 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Duncan averages 51 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 177 sunny days per year in Duncan. The US average is 205 sunny days.
Duncan gets some kind of precipitation, on average, 150 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 80 degrees
Winter Low: the January low is 14
Rain: averages 38 inches of rain a year
Snow: averages 51 inches of snow a year