TODAY APR24
TEMPERATURE56°F
HUMIDITY47%
PRESSURE30.32 inHg
WIND COND.120° 11.5 mph
  • 5753Tue100% | 100%
  • 6649Wed60% | 30%
  • 6649Thu
  • 6650Fri30% | 30%
  • 6848Sat
daynightWeather update from Washington/Reagan National Airport, DC, on 24 Apr 02:52 am EDT

Washington Average Weather

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
January12°F50°F32°Fn/a
February17°F69°F40°Fn/a
March17°F75°F46°Fn/a
April39°F94°F58°Fn/a
May49°F86°F66°Fn/a
June59°F89°F74°Fn/a
July64°F93°F78°Fn/a
August65°F94°F78°Fn/a
September57°F91°F71°Fn/a
October39°F83°F59°Fn/a
November29°F77°F50°Fn/a
December18°F69°F40°Fn/a

Did you know?

  • The highest monthly average temperature in Washington for August is 78 degrees.
  • The lowest monthly average temperature in Washington for January is 32 degrees.
  • The most monthly precipitation in Washington occurs in January with 0 inches.
  • The air quality index in Washington is 1% better than the national average.
  • The pollution index in Washington is 9% worse than the national average.

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Compare Washington, DC Weather To Other Cities

Washington air quality index & pollution index

In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
IndexWashingtonDistrict of ColumbiaNational
Air quality index494950
Pollution index5,554,0105,554,0105,066,862

Washington air quality information

MeasurementTotal
Days measured365
Days with good air quality194
Days with moderate air quality166
Days w/ poor A.Q. for sensitive groups5
Days with unhealthy air quality

Washington air quality information

PollutantTotal
Arsenic0.010%
Benzene0.060%
Carbon Tetrachloride0.010%
Lead0.004%
Mercury0.010%

Average monthly Washington temperature with heat index

Washington monthly precipitation with daily maximum

Washington monthly snow depth with daily maximum

Washington monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Fort Meade, MD9,730468%
Maryland City, MD17,647468%
Seabrook, MD17,668492%
Somerset, MD1,215492%
Springdale, MD2,878492%
Washington, DC659,009492%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Boston, MA658,279476%
Memphis, TN655,8574412%
Denver, CO663,303548%
Seattle, WA668,849492%
Nashville, TN643,7714510%
Washington, DC659,009492%
Source: The Washington, DC weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.