2025 Compare Climate & Weather:
Philadelphia, PA vs Decatur, GA

Highlights

On average, there are 218 sunny days per year in Decatur. Philadelphia averages 207 sunny days per year. The US average is 205 sunny days.

Decatur, Georgia gets 52.5 inches of rain, on average, per year. Philadelphia, Pennsylvania gets 47.2 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Decatur averages 1.5 inches of snow per year. Philadelphia averages 13.1 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Decatur, Georgia
Summer High: the July high is around 87.9 degrees
Winter Low: the January low is 32.6
Rain: averages 52.5 inches of rain a year
Snow: averages 1.5 inches of snow a year

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

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Decatur is 7.6 (10=best), which means it is one of the most pleasant places in Georgia.

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

Today's Weather - Philadelphia, PA

85°F

Today's Weather - Decatur, GA

82°F

Average Monthly High / Low (°F)

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

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.

July is the hottest month for Decatur with an average high temperature of 87.9°, which ranks it as cooler than most places in Georgia. In Decatur, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Decatur are May, September and April.

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

January has the coldest nighttime temperatures for Decatur with an average of 32.6°. This is about average compared to other places in Georgia.

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 Decatur, there are 28.3 days annually when the high temperature is over 90°, which is cooler than most places in Georgia.

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 Decatur, there are 46.4 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Georgia.

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.

In Decatur, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Georgia.

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.


July is the wettest month in Decatur with 5.1 inches of rain, and the driest month is April with 3.6 inches. The wettest season is Spring with 26% of yearly precipitation and 24% occurs in Winter, which is the driest season. The annual rainfall of 52.5 inches in Decatur means that it is wetter than most places in Georgia.

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.

July is the rainiest month in Decatur with 10.8 days of rain, and October is the driest month with only 6.8 rainy days. There are 108.7 rainy days annually in Decatur, which is rainier than most places in Georgia. The rainiest season is Autumn when it rains 28% of the time and the driest is Winter with only a 21% chance of a rainy day.

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

An annual snowfall of 1.5 inches in Decatur means that it is snowier than most places in Georgia.

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

January is the snowiest month in Decatur with 0.6 inches of snow, and 1 month of the year have significant snowfall.