Philadelphia, PA 

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Climate in Philadelphia, PA

Philadelphia, PA enjoys a humid subtropical climate with warm summers and cold winters. The average high temperature throughout the year is around 73°F (23°C) while the average low temperature is around 50°F (10°C). Precipitation is fairly common in Philadelphia with an average of around 3.8 inches per month. There are generally four distinct seasons in Philadelphia, with each season having its own unique weather pattern. In the summer, temperatures can reach up to 90°F (32°C) and during the winter, temperatures can drop down to 20°F (-6°C). Snowfall is usually light but it does occur on occasion.

Philadelphia, Pennsylvania gets 47 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Philadelphia averages 13 inches of snow per year. The US average is 28 inches of snow per year.

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

Philadelphia gets some kind of precipitation, on average, 119 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 87 degrees
Winter Low: the January low is 26
Rain: averages 47 inches of rain a year
Snow: averages 13 inches of snow a year


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

8.2 / 5.8

Summer   /   Winter
September, June and May are the most pleasant months in Philadelphia, while January and February are the least comfortable months.

Climate Averages
  Philadelphia, PennsylvaniaUnited States
  47.2 in.38.1 in.
  13.1 in.27.8 in.
  118.9 days106.2 days
  207 days205 days
  46 ft.2443 ft.


Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

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.

In Philadelphia, there are 25.2 days annually when the high temperature is over 90°, which is one of the hottest 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 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 Philadelphia, there are 0.2 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Pennsylvania.

The humidity is usually comfortable in Philadelphia but some summer months can be sticky or muggy. July is the most humid month, though humidity is low for most of the year. The most humid months are July, August and June.

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.

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 13.1 inches in Philadelphia means that it is one of the least snowy places in Pennsylvania. February is the snowiest month in Philadelphia with 4.8 inches of snow, and 4 months of the year have significant snowfall.

  • Annual Rainfall (US Avg: 36.5")
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    Reviews for Philadelphia    137 Reviews
    Let’s not like about killadelphia, PA - 8/28/2021
    Now the only reason some people disagree is because MONEY. If you live in “manayunk” (which I lived for 2 years) you can’t compare … you can’t compare your out skirt... Read More

    Start Your Review of Philadelphia

    avoid phila pa - 4/9/2021
    do not go. do not travel to. Will charge you fees, anything - to pay for the mess that they made. Life long resident, born here as well. I'm Very sorry to say. Go... Read More

    Hidden Gem - 4/2/2021
    I'm actually grateful for the bad reviews because I purchased an amazing home here 3 years ago and couldn't be happier! I feel like if everyone was giving it 5 stars the... Read More

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