Willow Grove, PA typically has a humid continental climate characterized by cold winters and hot summers. During the winter months, temperatures can dip below freezing, with average lows of around 31 °F (-1°C). In the summer months, temperatures can reach up to an average of 85 °F (29°C). Precipitation is well distributed throughout the year, with an average of about 44 inches (112 cm) each year. Due to its location near the Atlantic ocean and its elevation above sea level, Willow Grove enjoys relatively mild weather year-round.
Willow Grove, Pennsylvania gets 48 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Willow Grove averages 17 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 203 sunny days per year in Willow Grove. The US average is 205 sunny days.
Willow Grove gets some kind of precipitation, on average, 109 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 24
Rain: averages 48 inches of rain a year
Snow: averages 17 inches of snow a year