2025 Compare Climate & Weather:
Bethlehem, PA vs Philadelphia, PA

Highlights

On average, there are 207 sunny days per year in Philadelphia. Bethlehem averages 202 sunny days per year. The US average is 205 sunny days.

Philadelphia, Pennsylvania gets 47.2 inches of rain, on average, per year. Bethlehem, Pennsylvania gets 48 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Philadelphia averages 13.1 inches of snow per year. Bethlehem averages 30.4 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Philadelphia, Pennsylvania
Summer High: the July high is around 87 degrees
Winter Low: the January low is 26
Rain: averages 47.2 inches of rain a year
Snow: averages 13.1 inches of snow a year

Bethlehem, Pennsylvania
Summer High: the July high is around 84.3 degrees
Winter Low: the January low is 18.5
Rain: averages 48 inches of rain a year
Snow: averages 30.4 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Philadelphia is 7.3 (10=best), which means it is one of the most pleasant places in Pennsylvania.

The annual BestPlaces Comfort Index for Bethlehem is 7.1 (10=best), which means it is more comfortable than most places in Pennsylvania.

Today's Weather - Bethlehem, PA

59°F

Today's Weather - Philadelphia, PA

60°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Bethlehem / Philadelphia

July is the hottest month for Bethlehem with an average high temperature of 84.3°, which ranks it as warmer than most places in Pennsylvania. In Bethlehem, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Bethlehem are June, September and August.

July is the hottest month for Philadelphia with an average high temperature of 87.0°, which ranks it as one of the hottest places in Pennsylvania. In Philadelphia, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Philadelphia are September, May and June.

January has the coldest nighttime temperatures for Bethlehem with an average of 18.5°. This is about average compared to other places in Pennsylvania.

January has the coldest nighttime temperatures for Philadelphia with an average of 26.0°. This is one of the warmest places in Pennsylvania.

In Bethlehem, there are 12.2 days annually when the high temperature is over 90°, which is hotter than most places in Pennsylvania.

In Philadelphia, there are 25.2 days annually when the high temperature is over 90°, which is one of the hottest places in Pennsylvania.

In Bethlehem, there are 130.9 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Pennsylvania.

In Philadelphia, there are 77.5 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Pennsylvania.

In Bethlehem, there are 2.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Pennsylvania.

In Philadelphia, there are 0.2 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Pennsylvania.

July is the wettest month in Bethlehem with 5.1 inches of rain, and the driest month is February with 2.9 inches. The wettest season is Autumn with 28% of yearly precipitation and 21% occurs in Spring, which is the driest season. The annual rainfall of 48.0 inches in Bethlehem means that it is one of the wettest places in Pennsylvania.


July is the wettest month in Philadelphia with 4.7 inches of rain, and the driest month is February with 2.9 inches. The wettest season is Autumn with 28% of yearly precipitation and 22% occurs in Spring, which is the driest season. The annual rainfall of 47.2 inches in Philadelphia means that it is wetter than most places in Pennsylvania.

May is the rainiest month in Bethlehem with 11.7 days of rain, and February is the driest month with only 8.7 rainy days. There are 119.6 rainy days annually in Bethlehem, which is less rainy than most places in Pennsylvania. The rainiest season is Summer when it rains 27% of the time and the driest is Winter with only a 23% chance of a rainy day.

April is the rainiest month in Philadelphia with 11.7 days of rain, and September is the driest month with only 8.5 rainy days. There are 118.9 rainy days annually in Philadelphia, which is less rainy than most places in Pennsylvania. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 22% chance of a rainy day.

An annual snowfall of 30.4 inches in Bethlehem means that it is about average compared to other places in Pennsylvania.

An annual snowfall of 13.1 inches in Philadelphia means that it is one of the least snowy places in Pennsylvania.

February is the snowiest month in Bethlehem with 10.3 inches of snow, and 6 months of the year have significant snowfall.

February is the snowiest month in Philadelphia with 4.8 inches of snow, and 4 months of the year have significant snowfall.