TODAY NOV02
TEMPERATURE65
HUMIDITY36
PRESSURE102640
WIND COND. 11.2
  • 6140Sun
  • 6452Mon
  • 7459Tue
  • 7760Wed
  • 7253Thu30%30%
daynightWeather update from Washington/Reagan National Airport, DC at
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Weather Quick Facts

  • The highest monthly average temperature in Derwood for July is 75.6 degrees
  • The lowest monthly average temperature in Derwood for January is 31.4 degrees
  • The most monthly precipitation in Derwood occurs in October with 9.4 inches
  • The air quality index in Derwood is 12% worse than the national average
  • The pollution index in Derwood is 455% worse than the national average

Compare Derwood, MD Weather

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      Derwood 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
      January24°F41°F31°F4.1"
      February26°F44°F34°F5.6"
      March34°F55°F43°F6.4"
      April44°F68°F55°F6.1"
      May55°F76°F64°F9.2"
      June63°F84°F72°F6.0"
      July66°F87°F76°F5.5"
      August64°F85°F73°F7.7"
      September58°F79°F67°F7.6"
      October46°F67°F55°F9.4"
      November36°F55°F44°F5.4"
      December30°F46°F37°F6.8"

      Derwood 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.
      IndexDerwoodMarylandNational
      Air quality index474342
      Pollution index15,133,0005,342,3672,726,193

      Derwood 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
      Arsenic0.070%
      Benzene0.130%
      Carbon Tetrachloride0.060%
      Lead0.070%
      Mercury0.130%

      Average monthly Derwood temperature with heat index

      Derwood monthly precipitation with daily maximum

      Derwood monthly snow depth with daily maximum

      Derwood monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Buckeystown, MD1,2894020.0%
      Urbana, MD12,3624020.0%
      Beltsville, MD17,922476.0%
      West Laurel, MD4,171476.0%
      Highland, MD1,086476.0%
      Derwood, MD1,644476.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Lazy Mountain, AK1,6443138.0%
      Rocky Point, NC1,6443432.0%
      Forest City, PA1,6443824.0%
      Moscow, PA1,6443824.0%
      Graysville, TN1,644198.0%
      Derwood, MD1,644476.0%
      Source: The Derwood, MD 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.