TODAY MAR04
TEMPERATURE42
HUMIDITY79
PRESSURE30.25
WIND COND.100 18.4
  • 4827Fri
  • 5133Sat
  • 6043Sun
  • 6345Mon
  • 6553Tue
daynightWeather update from Ottumwa, Ottumwa Industrial Airport at

Key findings

  • The highest monthly average temperature in Sigourney for July is 75 degrees
  • The lowest monthly average temperature in Sigourney for January is 24 degrees
  • The most monthly precipitation in Sigourney occurs in July with 7.8 inches
  • The air quality index in Sigourney is 30% better than the national average
  • The pollution index in Sigourney is 89% better than the national average

Compare Sigourney, IA Weather

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      Sigourney 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
      January17°F34°F24°F1.9"
      February17°F34°F25°F2.4"
      March31°F52°F40°F3.0"
      April41°F65°F52°F4.3"
      May53°F75°F63°F6.0"
      June62°F84°F72°F4.4"
      July65°F86°F75°F7.8"
      August63°F83°F72°F4.4"
      September54°F78°F65°F5.3"
      October44°F66°F53°F5.8"
      November32°F52°F41°F3.9"
      December21°F37°F28°F4.0"

      Sigourney 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.
      IndexSigourneyIowaNational
      Air quality index353950
      Pollution index577,8381,643,8365,066,862

      Sigourney air quality information

      MeasurementTotal
      Days measured364
      Days with good air quality278
      Days with moderate air quality86
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Sigourney air quality information

      PollutantTotal
      Arsenic0.000%
      Benzene0.010%
      Carbon Tetrachloride0.001%
      Lead0.090%
      Mercury0.000%

      Average monthly Sigourney temperature with heat index

      Sigourney monthly precipitation with daily maximum

      Sigourney monthly snow depth with daily maximum

      Sigourney monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Fremont, IA7453530%
      Gibson, IA483530%
      Harper, IA963530%
      Packwood, IA3163530%
      South English, IA2993530%
      Sigourney, IA2,1053530%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Leechburg, PA2,1053824%
      Jal, NM2,1054510%
      Bernie, MO2,1052648%
      Cleona, PA2,1054216%
      Boulevard Gardens, FL2,1054118%
      Sigourney, IA2,1053530%
      Source: The Sigourney, 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.