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Dulles Town Center, VA vs Philadelphia, PA weather comparison

Dulles Town Center

VA

Philadelphia has around 35 fewer freezing nights a year.

The year at a glance

Averages from 30 years of climate history, 1991-2020

Annual weather statistics for Dulles Town Center, VA and Philadelphia, PA
Dulles Town CenterMetricPhiladelphia
205 daysSunny daysclear or partly cloudy skies203 days
42 inPrecipitationper year43 in
119 daysWet daysrain or snow per year120 days
22 inSnowfallper year18 in
29 daysHot daysabove 90 °F36 days
110 daysFreezing nightsat or below 32 °F76 days
69%Humidityaverage relative68%
55 °FAverage temperatureyear round57 °F

Monthly temperatures

Average daily high and low for each month, in °F. The gap between the two lines is what an ordinary day feels like across the year.

Dulles Town CenterPhiladelphia

Daily highs

406080JanMarMayJulSepNovDulles Town Center, Jan: 42 °FDulles Town Center, Feb: 46 °FDulles Town Center, Mar: 54 °FDulles Town Center, Apr: 66 °FDulles Town Center, May: 74 °FDulles Town Center, Jun: 83 °FDulles Town Center, Jul: 87 °FDulles Town Center, Aug: 86 °FDulles Town Center, Sep: 79 °FDulles Town Center, Oct: 67 °FDulles Town Center, Nov: 56 °FDulles Town Center, Dec: 46 °FPhiladelphia, Jan: 41 °FPhiladelphia, Feb: 44 °FPhiladelphia, Mar: 53 °FPhiladelphia, Apr: 65 °FPhiladelphia, May: 75 °FPhiladelphia, Jun: 84 °FPhiladelphia, Jul: 89 °FPhiladelphia, Aug: 86 °FPhiladelphia, Sep: 80 °FPhiladelphia, Oct: 67 °FPhiladelphia, Nov: 56 °FPhiladelphia, Dec: 46 °F

Daily lows

4060JanMarMayJulSepNovDulles Town Center, Jan: 25 °FDulles Town Center, Feb: 26 °FDulles Town Center, Mar: 33 °FDulles Town Center, Apr: 43 °FDulles Town Center, May: 53 °FDulles Town Center, Jun: 62 °FDulles Town Center, Jul: 67 °FDulles Town Center, Aug: 65 °FDulles Town Center, Sep: 58 °FDulles Town Center, Oct: 45 °FDulles Town Center, Nov: 35 °FDulles Town Center, Dec: 29 °FPhiladelphia, Jan: 27 °FPhiladelphia, Feb: 29 °FPhiladelphia, Mar: 35 °FPhiladelphia, Apr: 45 °FPhiladelphia, May: 55 °FPhiladelphia, Jun: 65 °FPhiladelphia, Jul: 70 °FPhiladelphia, Aug: 68 °FPhiladelphia, Sep: 61 °FPhiladelphia, Oct: 50 °FPhiladelphia, Nov: 40 °FPhiladelphia, Dec: 32 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Dulles Town Center high424654667483878679675646
Philadelphia high414453657584898680675646
Dulles Town Center low252633435362676558453529
Philadelphia low272935455565706861504032

Monthly precipitation

Total rain plus melted snow for each month, in inches. Taller bars mean wetter months.

Dulles Town CenterPhiladelphia
0.02.04.0JanMarMayJulSepNovDulles Town Center, Jan: 3.0 inDulles Town Center, Feb: 2.8 inDulles Town Center, Mar: 3.8 inDulles Town Center, Apr: 3.4 inDulles Town Center, May: 3.8 inDulles Town Center, Jun: 3.4 inDulles Town Center, Jul: 3.9 inDulles Town Center, Aug: 3.3 inDulles Town Center, Sep: 4.3 inDulles Town Center, Oct: 3.4 inDulles Town Center, Nov: 3.0 inDulles Town Center, Dec: 3.5 inPhiladelphia, Jan: 3.2 inPhiladelphia, Feb: 3.0 inPhiladelphia, Mar: 4.1 inPhiladelphia, Apr: 3.6 inPhiladelphia, May: 3.5 inPhiladelphia, Jun: 3.8 inPhiladelphia, Jul: 3.9 inPhiladelphia, Aug: 3.7 inPhiladelphia, Sep: 4.1 inPhiladelphia, Oct: 3.6 inPhiladelphia, Nov: 2.9 inPhiladelphia, Dec: 4.0 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Dulles Town Center3.02.83.83.43.83.43.93.34.33.43.03.5
Philadelphia3.23.04.13.63.53.83.93.74.13.62.94.0

Monthly sunny days

Days each month with clear or partly cloudy skies, so compare the same month between cities.

Dulles Town CenterPhiladelphia
01020JanMarMayJulSepNovDulles Town Center, Jan: 16 daysDulles Town Center, Feb: 15 daysDulles Town Center, Mar: 16 daysDulles Town Center, Apr: 16 daysDulles Town Center, May: 16 daysDulles Town Center, Jun: 17 daysDulles Town Center, Jul: 19 daysDulles Town Center, Aug: 19 daysDulles Town Center, Sep: 18 daysDulles Town Center, Oct: 20 daysDulles Town Center, Nov: 18 daysDulles Town Center, Dec: 16 daysPhiladelphia, Jan: 16 daysPhiladelphia, Feb: 16 daysPhiladelphia, Mar: 16 daysPhiladelphia, Apr: 15 daysPhiladelphia, May: 16 daysPhiladelphia, Jun: 16 daysPhiladelphia, Jul: 18 daysPhiladelphia, Aug: 19 daysPhiladelphia, Sep: 18 daysPhiladelphia, Oct: 19 daysPhiladelphia, Nov: 17 daysPhiladelphia, Dec: 16 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Dulles Town Center161516161617191918201816
Philadelphia161616151616181918191716

Keep comparing

Nearby cities and popular picks for each side of this matchup. Any two cities can be compared from the home page.

Dulles Town Center vs another city

See the full Dulles Town Center, VA climate profile

More Virginia cities

Philadelphia vs another city

See the full Philadelphia, PA climate profile

More Pennsylvania cities

About this data

Every figure on this page is a 30 year average computed from daily climate history for 1991-2020, using each city's own coordinates. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.

Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).