TODAY MAR29
TEMPERATURE51
HUMIDITY62
PRESSURE101590
WIND COND.320 13
  • 6451Sat20%40%
  • 6950Sun50%
  • 6250Mon70%80%
  • 6850Tue80%70%
  • 6040Wed70%50%
daynightWeather update from College Park Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Deanwood for July is 80.8 degrees
  • The lowest monthly average temperature in Deanwood for January is 37.1 degrees
  • The most monthly precipitation in Deanwood occurs in June with 5.3 inches
  • The air quality index in Deanwood is 12% worse than the national average
  • The pollution index in Deanwood is 69% better than the national average

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      Deanwood 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"

      Deanwood 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.
      IndexDeanwoodWashingtonDistrict of Columbia
      Air quality index474749
      Pollution index849,1855,554,0105,554,010

      Deanwood air quality information

      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

      Deanwood air quality information

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

      Average monthly Deanwood temperature with heat index

      Deanwood monthly precipitation with daily maximum

      Deanwood monthly snow depth with daily maximum

      Deanwood monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Maryland City, MD17,681468.0%
      Fort Meade, MD11,340468.0%
      Odenton, MD42,258468.0%
      Brandywine, MD8,990476.0%
      Crofton, MD29,482476.0%
      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 Deanwood, 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.