18020 Bethlehem, PA is situated in the Northeastern United States and enjoys a humid continental climate. In the summer months, temperatures can reach to the mid-80s Fahrenheit, while the winter months bring lows around 10-20 degrees Fahrenheit. The area receives an average of 43 inches of rainfall annually, with snowfall averaging 24 inches per year. Spring and autumn are generally pleasant and mild. In general, Bethlehem summers are warm and humid while winters tend to be cold and snowy.
Bethlehem (zip 18020), Pennsylvania gets 47 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Bethlehem (zip 18020) averages 28 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 204 sunny days per year in Bethlehem (zip 18020). The US average is 205 sunny days.
Bethlehem (zip 18020) 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.
Weather Highlights
Summer High: the July high is around 85 degrees
Winter Low: the January low is 19
Rain: averages 47 inches of rain a year
Snow: averages 28 inches of snow a year