The remote server returned an error: (400) Bad Request.The remote server returned an error: (400) Bad Request. 2025 Compare Climate & Weather: Philadelphia, PA vs Dulles Town Center, VA

2025 Compare Climate & Weather:
Philadelphia, PA vs Dulles Town Center, VA

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Highlights

On average, there are 197 sunny days per year in Dulles Town Center. Philadelphia averages 207 sunny days per year. The US average is 205 sunny days.

Dulles Town Center, Virginia gets 42 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.

Dulles Town Center averages 21.5 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

Dulles Town Center, Virginia
Summer High: the July high is around 85.9 degrees
Winter Low: the January low is 23.5
Rain: averages 42 inches of rain a year
Snow: averages 21.5 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
Dulles Town Center

The annual BestPlaces Comfort Index for Dulles Town Center is 7.3 (10=best), which means it is about average compared to other places in Virginia.

7.3 / 10
September, June and May are the most pleasant months in Dulles Town Center, while January and February are the least comfortable months.

Philadelphia

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

7.3 / 10
September, June and May are the most pleasant months in Philadelphia, while January and February are the least comfortable months.

Average Monthly High / Low (°F)
MonthPhiladelphia, PADulles Town Center, VA
January41° / 26°42° / 24°
February45° / 28°46° / 26°
March53° / 35°54° / 32°
April64° / 44°66° / 42°
May74° / 54°73° / 51°
June83° / 64°82° / 61°
July87° / 69°86° / 66°
August85° / 67°85° / 64°
September78° / 60°78° / 56°
October67° / 48°67° / 44°
November56° / 40°57° / 35°
December45° / 31°45° / 27°
Hot, Freezing, Rainy, Snowy Days: Philadelphia / Dulles Town Center
MonthHot DaysFreezing DaysRainy DaysSnowy Days
January0 / 022 / 2511 / 102 / 3
February0 / 019 / 229 / 92 / 3
March0 / 011 / 1611 / 101 / 1
April0 / 02 / 412 / 110 / 0
May1 / 10 / 012 / 120 / 0
June6 / 40 / 010 / 100 / 0
July10 / 80 / 010 / 100 / 0
August7 / 60 / 09 / 90 / 0
September1 / 20 / 09 / 90 / 0
October0 / 01 / 39 / 80 / 0
November0 / 06 / 129 / 90 / 0
December0 / 017 / 2310 / 101 / 2
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 Dulles Town Center with an average high temperature of 85.9°, which ranks it as cooler than most places in Virginia. In Dulles Town Center, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Dulles Town Center are September, June and May.
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 Dulles Town Center with an average of 23.5°. This is colder than most places in Virginia.

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 Dulles Town Center, there are 19.5 days annually when the high temperature is over 90°, which is cooler than most places in Virginia.

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 Dulles Town Center, there are 104.1 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Virginia.

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 Dulles Town Center, there are 0.6 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Virginia.

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 wettest month in Dulles Town Center with 4.5 inches of rain, and the driest month is February with 2.7 inches. The wettest season is Summer with 27% of yearly precipitation and 20% occurs in Spring, which is the driest season. The annual rainfall of 42.0 inches in Dulles Town Center means that it is drier than most places in Virginia.

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.

May is the rainiest month in Dulles Town Center with 11.9 days of rain, and October is the driest month with only 8.1 rainy days. There are 116.3 rainy days annually in Dulles Town Center, which is about average compared to other places in Virginia. 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.

An annual snowfall of 21.5 inches in Dulles Town Center means that it is one of the snowiest places in Virginia.
February is the snowiest month in Philadelphia with 4.8 inches of snow, and 4 months of the year have significant snowfall.

February is the snowiest month in Dulles Town Center with 7.8 inches of snow, and 5 months of the year have significant snowfall.

DID YOU KNOW?

Many people confuse Weather and Climate, but they are different. Weather refers to the conditions of the atmosphere over a short period of time, while Climate refers to the conditions of the atmosphere over a long period of time.

Weather, more specifically, refers to how the atmosphere behaves and its effects on life and human activities. Most people think of Weather in terms of what can be observed: temperature, humidity, precipitation, and cloudy/sunny conditions. Weather conditions constantly change on a minute-to-minute basis.

Climate is a record of the average weather conditions for a given place over a long period of time, often referred to as Climate Normals. A 30-year period of record is a common requirement to be considered a Climate Normal.

Reviews for Philadelphia    2 Reviews
Jill · Sherman Oaks, CA
re:
Over 16 years ago

Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't  More

   |    Reply
NC For Me · Apex, NC
re:
Over 16 years ago

Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but  More

   |    Reply

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Reviews for Dulles Town Center    2 Reviews
Jill · Sherman Oaks, CA
re:
Over 16 years ago

Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't  More

   |    Reply
NC For Me · Apex, NC
re:
Over 16 years ago

Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but  More

   |    Reply

Start Your Review of Dulles Town Center

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Zips In Philadelphia, Pennsylvania
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Zips In DULLES TOWN CENTER, VIRGINIA
20166
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