Rosslyn Farms, PA is located in a humid continental climate zone, characterized by warm summers and cold winters. The region experiences moderate precipitation throughout the year with annual averages ranging from 37 to 42 inches of rain and snowfall. Temperatures in Rosslyn Farms, PA typically range from an average low of 20 degrees Fahrenheit during the winter to an average high of 84 degrees Fahrenheit in the summer months. During the summer months, the humidity can be quite high at times, making it important for locals to take precautions when spending long periods of time outdoors.
Rosslyn Farms, Pennsylvania gets 37 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Rosslyn Farms averages 26 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 161 sunny days per year in Rosslyn Farms. The US average is 205 sunny days.
Rosslyn Farms gets some kind of precipitation, on average, 137 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 84 degrees
Winter Low: the January low is 21
Rain: averages 37 inches of rain a year
Snow: averages 26 inches of snow a year