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Key findings

  • The highest monthly average temperature in Selbyville for August is 77.6 degrees
  • The lowest monthly average temperature in Selbyville for February is 34.9 degrees
  • The most monthly precipitation in Selbyville occurs in October with 7.4 inches
  • The air quality index in Selbyville is 28% better than the national average
  • The pollution index in Selbyville is 42% worse than the national average

Compare Selbyville, DE Weather

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      Selbyville 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
      January30°F49°F40°F5.8"
      February26°F44°F35°F4.8"
      March34°F52°F43°F6.6"
      April43°F62°F52°F7.0"
      May50°F69°F60°F5.2"
      June64°F79°F71°F7.2"
      July69°F85°F77°F6.9"
      August70°F86°F78°F2.9"
      September62°F80°F72°F2.6"
      October54°F71°F63°F7.4"
      November41°F59°F50°F4.3"
      December32°F50°F41°F6.8"

      Selbyville 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.
      IndexSelbyvilleDelawareNational
      Air quality index364150
      Pollution index7,219,5403,759,2125,066,862

      Selbyville air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality303
      Days with moderate air quality61
      Days w/ poor A.Q. for sensitive groups1
      Days with unhealthy air quality

      Selbyville air quality information

      PollutantTotal
      Arsenic0.060%
      Benzene0.070%
      Carbon Tetrachloride0.000%
      Lead0.030%
      Mercury0.110%

      Average monthly Selbyville temperature with heat index

      Selbyville monthly precipitation with daily maximum

      Selbyville monthly snow depth with daily maximum

      Selbyville monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Fenwick Island, DE3983628%
      Long Neck, DE2,6563628%
      South Bethany, DE4243628%
      West Ocean City, MD4,1993628%
      Bishopville, MD7493628%
      Selbyville, DE2,2683628%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Palmer, TX2,268512%
      Spirit Lake, ID2,2694314%
      Cape Carteret, NC2,2673726%
      West Branch, MI2,2692648%
      Lakemont, PA2,2664118%
      Selbyville, DE2,2683628%
      Source: The Selbyville, DE 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.