Chester County, Pennsylvania gets 47 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Chester County averages 24 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 202 sunny days per year in Chester County. The US average is 205 sunny days.
Chester County gets some kind of precipitation, on average, 121 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.
Summer High: the July high is around 85 degrees
Winter Low: the January low is 21
Rain: averages 47 inches of rain a year
Snow: averages 24 inches of snow a year
BESTPLACES COMFORT INDEX
The annual BestPlaces Comfort Index for Chester County is 7.2 (10=best), which means it is one of the most pleasant places in Pennsylvania.
7.2 / 10
June, September and May are the most pleasant months in Chester County, while January and February are the least comfortable months.