TODAY NOV02
TEMPERATURE61
HUMIDITY42
PRESSURE102200
WIND COND.150 20.5
  • 6459Sun100%60%
  • 6949Mon80%90%
  • 5737Tue70%
  • 5837Wed
  • 5737Thu
daynightWeather update from Knoxville at
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Weather Quick Facts

  • The highest monthly average temperature in Swan for July is 77.4 degrees
  • The lowest monthly average temperature in Swan for January is 23.5 degrees
  • The most monthly precipitation in Swan occurs in June with 6.5 inches
  • The air quality index in Swan is 7% better than the national average
  • The pollution index in Swan is 242% worse than the national average

Compare Swan, IA Weather

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      Swan 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
      January14°F35°F23°F0.9"
      February17°F39°F26°F1.2"
      March30°F54°F41°F2.2"
      April41°F67°F53°F4.9"
      May51°F76°F63°F4.9"
      June62°F86°F74°F6.5"
      July66°F89°F77°F4.2"
      August64°F87°F75°F5.1"
      September56°F81°F68°F3.7"
      October43°F68°F55°F3.2"
      November31°F54°F42°F1.8"
      December18°F38°F27°F2.1"

      Swan 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.
      IndexSwanIowaNational
      Air quality index393942
      Pollution index9,310,1601,154,5352,726,193

      Swan air quality

      MeasurementTotal
      Days measured365
      Days with good air quality306
      Days with moderate air quality59
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.010%
      Benzene0.110%
      Carbon Tetrachloride0.080%
      Lead0.030%
      Mercury0.010%

      Average monthly Swan temperature with heat index

      Swan monthly precipitation with daily maximum

      Swan monthly snow depth with daily maximum

      Swan monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Mitchellville, IA2,3823922.0%
      Monroe, IA1,8103922.0%
      Indianola, IA15,9213922.0%
      Ackworth, IA2123922.0%
      Altoona, IA18,9173922.0%
      Swan, IA463922.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Tolsona, AK463138.0%
      Cardiff, AL46536.0%
      Soda Springs, CA464412.0%
      Morley, IA463922.0%
      Redding, IA464314.0%
      Swan, IA463922.0%
      Source: The Swan, 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.