TODAY DEC22
TEMPERATURE23
HUMIDITY81
PRESSURE102470
WIND COND.160 14.8
  • 4235
  • 4326Mon
  • 3930Tue
  • 4234
  • 4840Thu30%40%
daynightWeather update from Ottumwa Regional Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Ottumwa for July is 74.9 degrees
  • The lowest monthly average temperature in Ottumwa for January is 23.5 degrees
  • The most monthly precipitation in Ottumwa occurs in June with 6.5 inches
  • The air quality index in Ottumwa is 31% better than the national average
  • The pollution index in Ottumwa is 83% better than the national average

Compare Ottumwa, IA Weather

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      Ottumwa 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
      January15°F33°F24°F0.7"
      February17°F36°F26°F1.1"
      March31°F52°F40°F2.3"
      April41°F65°F52°F4.7"
      May51°F74°F62°F5.0"
      June62°F83°F72°F6.5"
      July65°F86°F75°F4.5"
      August63°F84°F73°F5.2"
      September54°F78°F65°F3.7"
      October43°F65°F53°F3.0"
      November32°F52°F41°F2.0"
      December20°F36°F28°F1.9"

      Ottumwa 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.
      IndexOttumwaIowaNational
      Air quality index293942
      Pollution index464,3331,154,5352,726,193

      Ottumwa air quality

      MeasurementTotal
      Days measured120
      Days with good air quality101
      Days with moderate air quality19
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.000%
      Benzene0.010%
      Carbon Tetrachloride0.001%
      Lead0.320%
      Mercury0.000%

      Average monthly Ottumwa temperature with heat index

      Ottumwa monthly precipitation with daily maximum

      Ottumwa monthly snow depth with daily maximum

      Ottumwa monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Agency, IA6252942.0%
      Batavia, IA5572942.0%
      Floris, IA1332942.0%
      Eldon, IA9212942.0%
      Chillicothe, IA993530.0%
      Ottumwa, IA24,5052942.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Key West, FL24,4953432.0%
      Collinsville, IL24,489548.0%
      Homer Glen, IL24,5215510.0%
      Watauga, TX24,487512.0%
      Coronado, CA24,5266428.0%
      Ottumwa, IA24,5052942.0%
      Source: The Ottumwa, IA 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.