Allentown, NJ enjoys a temperate climate with hot, humid summers and cold winters. Average high temperatures during the summer months range from the upper 70s to the mid 80s Fahrenheit, while average lows in winter dip into the 20s and 30s. Rainfall is evenly distributed throughout all seasons, with approximately 44 inches per year. Snowfall is also common in Allentown from late fall through early spring, though it does not usually accumulate more than an inch or two at a time. Humidity levels are generally quite high year round due to its coastal location.
Allentown, New Jersey gets 47 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Allentown averages 22 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 212 sunny days per year in Allentown. The US average is 205 sunny days.
Allentown gets some kind of precipitation, on average, 120 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 86 degrees
Winter Low: the January low is 23
Rain: averages 47 inches of rain a year
Snow: averages 22 inches of snow a year