TODAY OCT07
TEMPERATURE74
HUMIDITY45
PRESSURE101220
WIND COND.310 20.5
  • 6949Tue
  • 7149Wed
  • 6545Thu
  • 6849Fri
  • 7753Sat
daynightWeather update from Washington/Reagan National Airport, DC at
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Weather Quick Facts

  • The highest monthly average temperature in Dupont Circle for July is 80.8 degrees
  • The lowest monthly average temperature in Dupont Circle for January is 37.1 degrees
  • The most monthly precipitation in Dupont Circle occurs in June with 5.3 inches
  • The air quality index in Dupont Circle is 12% worse than the national average
  • The pollution index in Dupont Circle is 42% better than the national average

Compare Washington, DC Weather

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      Dupont Circle Average Temperature

      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
      January28°F47°F37°F2.7"
      February29°F50°F38°F2.3"
      March37°F60°F47°F3.2"
      April47°F71°F58°F3.4"
      May56°F78°F67°F4.6"
      June67°F87°F77°F5.3"
      July72°F91°F81°F4.2"
      August70°F90°F79°F3.2"
      September63°F83°F72°F3.5"
      October52°F72°F61°F5.0"
      November40°F61°F50°F2.5"
      December33°F52°F42°F3.8"

      Dupont Circle 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.
      IndexDupont CircleWashingtonDistrict of Columbia
      Air quality index474749
      Pollution index1,590,9705,554,0105,554,010

      Dupont Circle air quality

      MeasurementTotal
      Days measured365
      Days with good air quality209
      Days with moderate air quality145
      Days w/ poor A.Q. for sensitive groups10
      Days with unhealthy air quality1

      Air quality details

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

      Average monthly Dupont Circle temperature with heat index

      Dupont Circle monthly precipitation with daily maximum

      Dupont Circle monthly snow depth with daily maximum

      Dupont Circle monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Maryland City, MD17,681468.0%
      North Laurel, MD24,856468.0%
      Four Corners, MD8,268476.0%
      Mount Rainier, MD8,149476.0%
      Beltsville, MD17,922476.0%
      Washington, DC701,974476.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Vancouver, BC694,440n/a 
      Boston, MA689,3264314.0%
      Denver, CO715,8785816.0%
      El Paso, TX679,879536.0%
      Detroit, MI672,3515612.0%
      Washington, DC701,974476.0%
      Source: The Dupont Circle, 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.