Stillwater, PA has a humid continental climate with hot summers and cold winters. During the summer, temperatures average in the mid-70s Fahrenheit with high humidity levels. In the winter, temperatures average in the low 30s Fahrenheit and can sometimes dip into single digits when influenced by Arctic air masses. Precipitation is plentiful throughout the year, with snowfall accumulating in late fall through early spring. Spring and autumn are brief but pleasant times of transition with lots of sunshine and moderate temperatures.
Stillwater, Pennsylvania gets 46 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Stillwater averages 36 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 179 sunny days per year in Stillwater. The US average is 205 sunny days.
Stillwater gets some kind of precipitation, on average, 127 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 81 degrees
Winter Low: the January low is 16
Rain: averages 46 inches of rain a year
Snow: averages 36 inches of snow a year