TODAY NOV07
TEMPERATURE74
HUMIDITY52
PRESSURE101900
WIND COND.340 20.5
  • 7445Fri
  • 5941Sat
  • 5953Sun90%
  • 724970%
  • 6145Tue
daynightWeather update from Washington/Reagan National Airport, DC at
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Weather Quick Facts

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

Compare Alexandria, VA Weather

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      Seminary Hill 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"

      Seminary Hill 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.
      IndexSeminary HillAlexandriaVirginia
      Air quality index474758
      Pollution index2,776,5902,776,5901,561,881

      Seminary Hill 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 Seminary Hill temperature with heat index

      Seminary Hill monthly precipitation with daily maximum

      Seminary Hill monthly snow depth with daily maximum

      Seminary Hill monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Riverdale Park, MD7,216476.0%
      University Park, MD2,653476.0%
      Bensville, MD13,658476.0%
      Lake Ridge, VA45,111476.0%
      Montclair, VA21,329476.0%
      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 Seminary Hill, 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.