18643 Exeter, PA typically experiences a humid continental climate with cool winters and hot summers. In the winter months, temperatures range from low single digits to mid-forties Fahrenheit, while in the summer months they can reach into the eighties and nineties. Precipitation is common throughout the year with snowfall in the colder months and rain showers in the warmer months. There is some unpredictability to the weather due to its proximity to both Lake Erie and Lake Ontario, which can bring more severe weather depending on how active these bodies of water become.
Exeter (zip 18643), Pennsylvania gets 41 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Exeter (zip 18643) averages 38 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 176 sunny days per year in Exeter (zip 18643). The US average is 205 sunny days.
Exeter (zip 18643) gets some kind of precipitation, on average, 129 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 82 degrees
Winter Low: the January low is 17
Rain: averages 41 inches of rain a year
Snow: averages 38 inches of snow a year
BESTPLACES COMFORT INDEX
The annual BestPlaces Comfort Index for the 18643 zip code is 6.9 (10=best), which means it is about average compared to other places in Pennsylvania.
9.1 / 4.7
Summer / Winter
August, July and June are the most pleasant months in the 18643 zip code, while January and February are the least comfortable months.