Bethlehem (zip 18018), Pennsylvania gets 48 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Bethlehem (zip 18018) averages 29 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 18018). The US average is 205 sunny days.
Bethlehem (zip 18018) 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 85 degrees
Winter Low: the January low is 19
Rain: averages 48 inches of rain a year
Snow: averages 29 inches of snow a year
BESTPLACES COMFORT INDEX
The annual BestPlaces Comfort Index for the 18018 zip code is 7.0 (10=best), which means it is more comfortable than most places in Pennsylvania.
8.8 / 5.1
Summer / Winter
June, September and August are the most pleasant months in the 18018 zip code, while January and February are the least comfortable months.