TODAY NOV09
TEMPERATURE43
HUMIDITY86
PRESSURE102510
WIND COND.90 14.8
  • 5449Sat60%
  • 5742Sun20%
  • 5935
  • 5641Tue
  • 5939Wed40%
daynightWeather update from Clinton Municipal Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Morrison for August is 73.3 degrees
  • The lowest monthly average temperature in Morrison for December is 23.1 degrees
  • The most monthly precipitation in Morrison occurs in August with 9.2 inches
  • The air quality index in Morrison is equal to the national average
  • The pollution index in Morrison is 23% better than the national average

Compare Morrison, IL Weather

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      Morrison 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
      January18°F33°F25°F2.9"
      February17°F32°F24°F2.5"
      March31°F52°F39°F4.5"
      April39°F65°F50°F6.4"
      May50°F76°F62°F3.5"
      June61°F86°F73°F6.1"
      July61°F86°F73°F7.8"
      August64°F85°F73°F9.2"
      September55°F82°F67°F3.9"
      October45°F69°F56°F1.9"
      November30°F52°F40°F4.2"
      December17°F31°F23°F1.5"

      Morrison 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.
      IndexMorrisonIllinoisNational
      Air quality index424142
      Pollution index2,097,7403,148,6942,726,193

      Morrison air quality

      MeasurementTotal
      Days measured364
      Days with good air quality268
      Days with moderate air quality96
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.001%
      Benzene0.060%
      Carbon Tetrachloride0.000%
      Lead0.001%
      Mercury0.300%

      Average monthly Morrison temperature with heat index

      Morrison monthly precipitation with daily maximum

      Morrison monthly snow depth with daily maximum

      Morrison monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Fulton, IL3,2554216.0%
      Como, IL5254216.0%
      Rock Falls, IL8,9144216.0%
      Clinton, IA25,2904216.0%
      Deer Grove, IL334216.0%
      Morrison, IL3,8504216.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Dumas, AR3,8504314.0%
      Harbour Heights, FL3,8503628.0%
      Owego, NY3,8503628.0%
      Penhold, AB3,849n/a 
      Lake Park, NC3,851492.0%
      Morrison, IL3,8504216.0%
      Source: The Morrison, IL 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.