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Weather Quick Facts

  • The highest monthly average temperature in Yankton for July is 75.5 degrees
  • The lowest monthly average temperature in Yankton for January is 21.2 degrees
  • The most monthly precipitation in Yankton occurs in October with 7.9 inches
  • The air quality index in Yankton is 14% better than the national average
  • The pollution index in Yankton is 82% better than the national average

Compare Yankton, SD Weather

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      Yankton 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
      January13°F32°F21°F0.9"
      February15°F35°F23°F1.8"
      March28°F50°F37°F2.8"
      April38°F62°F49°F6.1"
      May49°F73°F60°F4.3"
      June60°F83°F71°F6.2"
      July65°F87°F76°F6.5"
      August62°F83°F72°F6.6"
      September53°F77°F64°F5.9"
      October41°F64°F51°F7.9"
      November28°F49°F37°F1.6"
      December15°F33°F23°F2.2"

      Yankton 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.
      IndexYanktonSouth DakotaNational
      Air quality index363642
      Pollution index482,612345,6232,726,193

      Yankton air quality information

      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

      Yankton air quality information

      PollutantTotal
      Arsenic0.000%
      Benzene0.010%
      Carbon Tetrachloride0.001%
      Lead0.004%
      Mercury0.000%

      Average monthly Yankton temperature with heat index

      Yankton monthly precipitation with daily maximum

      Yankton monthly snow depth with daily maximum

      Yankton monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Bow Valley, NE963530.0%
      Wynot, NE2523530.0%
      Crofton, NE8983530.0%
      Gayville, SD3743530.0%
      Fordyce, NE2183530.0%
      Yankton, SD14,6193628.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Greenlawn, NY14,5984314.0%
      Ferndale, WA14,5913432.0%
      Sharonville, OH14,659548.0%
      Scottsbluff, NE14,6601962.0%
      Groveton, VA14,664476.0%
      Yankton, SD14,6193628.0%
      Source: The Yankton, 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.