TODAY OCT31
TEMPERATURE75
HUMIDITY54
PRESSURE101830
WIND COND.190 20.5
  • 8048Fri40%
  • 6442Sat
  • 6448Sun
  • 7058Mon
  • 7766Tue
daynightWeather update from Washington/Reagan National Airport, DC at
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Weather Quick Facts

  • The highest monthly average temperature in Potomac West for July is 80.8 degrees
  • The lowest monthly average temperature in Potomac West for January is 37.1 degrees
  • The most monthly precipitation in Potomac West occurs in June with 5.3 inches
  • The air quality index in Potomac West is 12% worse than the national average
  • The pollution index in Potomac West is 2% worse than the national average

Compare Alexandria, VA Weather

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      Potomac West 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"

      Potomac West 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.
      IndexPotomac WestAlexandriaVirginia
      Air quality index474758
      Pollution index2,776,5902,776,5901,561,881

      Potomac West 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%
      Benzene0.020%
      Carbon Tetrachloride0.010%
      Lead0.020%
      Mercury0.030%

      Average monthly Potomac West temperature with heat index

      Potomac West monthly precipitation with daily maximum

      Potomac West monthly snow depth with daily maximum

      Potomac West monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Woodlawn CDP (Carroll County), VA2,247476.0%
      Chevy Chase Section Five, MD757476.0%
      Forest Glen, MD5,957476.0%
      North Chevy Chase, MD555476.0%
      Mount Vernon, VA13,490476.0%
      Alexandria, VA158,309476.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Hayward, CA158,8174314.0%
      Lancaster, CA157,6977244.0%
      Barrie, ON159,618n/a 
      Coquitlam, BC159,980n/a 
      Abbotsford, BC160,174n/a 
      Alexandria, VA158,309476.0%
      Source: The Potomac West, Alexandria, VA 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.