Allentown, PA has a humid continental climate with hot and muggy summers and cold, snowy winters. During the summer months average highs are in the mid-80s with some occasional heat waves reaching beyond 90 degrees. During winter months, temperatures can dip below freezing with an average of around 30 inches of snowfall per season. Although the weather can be extreme at times, it provides a variety of activities throughout the year for those who visit or live in Allentown.
Allentown, Pennsylvania gets 47 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Allentown averages 29 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 201 sunny days per year in Allentown. The US average is 205 sunny days.
Allentown gets some kind of precipitation, on average, 122 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 86 degrees
Winter Low: the January low is 20
Rain: averages 47 inches of rain a year
Snow: averages 29 inches of snow a year
BESTPLACES COMFORT INDEX
The annual BestPlaces Comfort Index for Allentown is 7.1 (10=best), which means it is more comfortable than most places in Pennsylvania.
8.6 / 5.2
Summer / Winter
September, June and August are the most pleasant months in Allentown, while January and February are the least comfortable months.