TODAY APR20
TEMPERATURE22
HUMIDITY71
PRESSURE30.21
WIND COND.280 9.4
  • 4423Tue40%
  • 4927Wed
  • 5836Thu30%
  • 6129Fri
  • 5134Sat
daynightWeather update from Mitchell, Mitchell Municipal Airport at

Key findings

  • The highest monthly average temperature in Harrison for July is 76 degrees
  • The lowest monthly average temperature in Harrison for January is 19.8 degrees
  • The most monthly precipitation in Harrison occurs in May with 3.6 inches
  • The air quality index in Harrison is 28% better than the national average
  • The pollution index in Harrison is 94% better than the national average

Compare Harrison, SD Weather

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      Harrison 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"

      Harrison 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.
      IndexHarrisonSouth DakotaNational
      Air quality index363650
      Pollution index296,415463,9835,066,862

      Harrison 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

      Harrison air quality information

      PollutantTotal
      Arsenic0.000%
      Benzene0.005%
      Carbon Tetrachloride0.001%
      Lead0.000%
      Mercury0.000%

      Average monthly Harrison temperature with heat index

      Harrison monthly precipitation with daily maximum

      Harrison monthly snow depth with daily maximum

      Harrison monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Aurora Center, SD533628%
      Corsica, SD6163628%
      Geddes, SD2203628%
      New Holland, SD313628%
      Armour, SD8813628%
      Harrison, SD1093628%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Vera Cruz, IN1093138%
      Stockholm, SD1092550%
      Pine Apple, AL109524%
      Olowalu, HI1091570%
      Blanco, OK1094314%
      Harrison, SD1093628%
      Source: The Harrison, 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.