TODAY DEC23
TEMPERATURE24
HUMIDITY55
PRESSURE103590
WIND COND.30 11.2
  • 3425Mon
  • 4431Tue30%
  • 4230
  • 4029Thu
  • 4433Fri
daynightWeather update from Washington/Reagan National Airport, DC at
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Weather Quick Facts

  • The highest monthly average temperature in Chevy Chase for July is 80.8 degrees
  • The lowest monthly average temperature in Chevy Chase for January is 37.1 degrees
  • The most monthly precipitation in Chevy Chase occurs in June with 5.3 inches
  • The air quality index in Chevy Chase is 12% worse than the national average
  • The pollution index in Chevy Chase is 439% worse than the national average

Compare Washington, DC Weather

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      Chevy Chase 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"

      Chevy Chase 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.
      IndexChevy ChaseWashingtonDistrict of Columbia
      Air quality index474749
      Pollution index14,693,9005,554,0105,554,010

      Chevy Chase 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 Chevy Chase temperature with heat index

      Chevy Chase monthly precipitation with daily maximum

      Chevy Chase monthly snow depth with daily maximum

      Chevy Chase monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Savage, MD6,849468.0%
      Maryland City, MD17,681468.0%
      North Laurel, MD24,856468.0%
      Hillcrest Heights, MD16,498476.0%
      Temple Hills, MD8,221476.0%
      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 Chevy Chase, 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.