TODAY NOV21
TEMPERATURE25
HUMIDITY100
PRESSURE102340
WIND COND.300 18.4
  • 4024Fri
  • 4129Sat
  • 3916Sun
  • 2712Mon
  • 3013Tue
daynightWeather update from Madison Municipal Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Salem for July is 76 degrees
  • The lowest monthly average temperature in Salem for January is 19.8 degrees
  • The most monthly precipitation in Salem occurs in May with 3.6 inches
  • The air quality index in Salem is 14% better than the national average
  • The pollution index in Salem is 95% better than the national average

Compare Salem, SD Weather

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      Salem 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
      January11°F30°F20°F0.2"
      February13°F34°F22°F0.4"
      March26°F49°F36°F0.8"
      April37°F62°F48°F2.2"
      May48°F73°F60°F3.6"
      June59°F83°F71°F3.3"
      July64°F89°F76°F2.9"
      August61°F84°F72°F3.2"
      September52°F78°F64°F1.9"
      October40°F64°F50°F2.2"
      November26°F49°F36°F0.4"
      December13°F32°F22°F0.5"

      Salem 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.
      IndexSalemSouth DakotaNational
      Air quality index363642
      Pollution index145,854345,6232,726,193

      Salem air quality

      MeasurementTotal
      Days measured365
      Days with good air quality321
      Days with moderate air quality43
      Days w/ poor A.Q. for sensitive groups1
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.000%
      Benzene0.002%
      Carbon Tetrachloride0.000%
      Lead0.000%
      Mercury0.000%

      Average monthly Salem temperature with heat index

      Salem monthly precipitation with daily maximum

      Salem monthly snow depth with daily maximum

      Salem monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Spencer, SD1323628.0%
      Emery, SD5103628.0%
      Montrose, SD5513628.0%
      Canistota, SD6633628.0%
      Farmer, SD343628.0%
      Salem, SD1,1833628.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Cave Spring, GA1,1834412.0%
      Kingston, IL1,1834216.0%
      Granby, MA1,1834020.0%
      Queen Anne, MD1,1833628.0%
      North Collins, NY1,1833922.0%
      Salem, SD1,1833628.0%
      Source: The Salem, SD 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.