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Key findings

  • The highest monthly average temperature in Omaha for July is 76.9 degrees
  • The lowest monthly average temperature in Omaha for January is 34.2 degrees
  • The most monthly precipitation in Omaha occurs in April with 10.6 inches
  • The air quality index in Omaha is 10% better than the national average
  • The pollution index in Omaha is 11% better than the national average

Compare Omaha, IL Weather

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      Omaha 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
      January27°F43°F34°F5.0"
      February28°F46°F36°F4.8"
      March39°F59°F48°F4.5"
      April48°F70°F58°F10.6"
      May57°F78°F67°F6.0"
      June66°F87°F76°F7.6"
      July67°F88°F77°F6.8"
      August65°F87°F76°F5.4"
      September58°F82°F69°F6.5"
      October47°F71°F58°F3.5"
      November37°F58°F47°F6.2"
      December31°F47°F38°F8.9"

      Omaha 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.
      IndexOmahaIllinoisNational
      Air quality index454150
      Pollution index4,489,3403,347,2955,066,862

      Omaha air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality244
      Days with moderate air quality111
      Days w/ poor A.Q. for sensitive groups10
      Days with unhealthy air quality0

      Omaha air quality information

      PollutantTotal
      Arsenic0.080%
      Benzene0.020%
      Carbon Tetrachloride0.002%
      Lead0.020%
      Mercury0.050%

      Average monthly Omaha temperature with heat index

      Omaha monthly precipitation with daily maximum

      Omaha monthly snow depth with daily maximum

      Omaha monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Broughton, IL1714314%
      Harrisburg, IL9,4184314%
      Eldorado, IL4,1344314%
      Enfield, IL5334314%
      Raleigh, IL3084314%
      Omaha, IL3314510%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Lowell, KS3313726%
      Cobalt, MO331548%
      Milburn, OK331325550%
      North Loup, NE3311962%
      Stapleton, NE3311962%
      Omaha, IL3314510%
      Source: The Omaha, 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.