TODAY NOV25
TEMPERATURE23
HUMIDITY57
PRESSURE101690
WIND COND.330 35.3
  • 309Mon
  • 3011Tue
  • 2910Wed
  • 262
  • 227Fri20%
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Weather Quick Facts

  • The highest monthly average temperature in Green Grass for July is 76.2 degrees
  • The lowest monthly average temperature in Green Grass for January is 20.1 degrees
  • The most monthly precipitation in Green Grass occurs in July with 9.1 inches
  • The air quality index in Green Grass is 14% better than the national average
  • The pollution index in Green Grass is 96% better than the national average

Compare Green Grass, SD Weather

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      Green Grass 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
      January12°F34°F20°F0.6"
      February15°F35°F23°F0.9"
      March27°F54°F38°F1.4"
      April34°F59°F45°F2.9"
      May44°F69°F55°F5.2"
      June55°F81°F67°F6.0"
      July63°F93°F76°F9.1"
      August59°F87°F71°F3.5"
      September51°F82°F64°F1.5"
      October39°F65°F49°F3.1"
      November26°F50°F35°F0.9"
      December14°F33°F22°F1.3"

      Green Grass 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.
      IndexGreen GrassSouth DakotaNational
      Air quality index363642
      Pollution index95,587345,6232,726,193

      Green Grass air quality

      MeasurementTotal
      Days measured365
      Days with good air quality320
      Days with moderate air quality45
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Air quality details

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

      Average monthly Green Grass temperature with heat index

      Green Grass monthly precipitation with daily maximum

      Green Grass monthly snow depth with daily maximum

      Green Grass monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      North Eagle Butte, SD1,8384412.0%
      Eagle Butte, SD1,4584412.0%
      Green Grass, SD223628.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Dot Lake Village, AK223824.0%
      Coppock, IA223530.0%
      Pioneer, IA223726.0%
      Byers, KS221570.0%
      Irwin, MO223726.0%
      Green Grass, SD223628.0%
      Source: The Green Grass, 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.