TODAY NOV21
TEMPERATURE34
HUMIDITY75
PRESSURE102000
WIND COND.310 27.7
  • 4225Fri
  • 4735Sat
  • 5529Sun
  • 3720Mon
  • 3621Tue
daynightWeather update from Ankeny Regional Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Polk City for July is 74.1 degrees
  • The lowest monthly average temperature in Polk City for January is 20.6 degrees
  • The most monthly precipitation in Polk City occurs in June with 6 inches
  • The air quality index in Polk City is 7% better than the national average
  • The pollution index in Polk City is 242% worse than the national average

Compare Polk City, IA Weather

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      Polk City 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
      January12°F30°F21°F0.7"
      February14°F33°F23°F0.7"
      March29°F49°F38°F2.1"
      April39°F63°F50°F5.0"
      May50°F74°F61°F5.9"
      June60°F83°F71°F6.0"
      July63°F85°F74°F5.1"
      August61°F83°F71°F6.0"
      September52°F77°F64°F4.5"
      October41°F64°F52°F3.4"
      November29°F50°F38°F1.8"
      December17°F34°F25°F1.5"

      Polk City 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.
      IndexPolk CityIowaNational
      Air quality index393942
      Pollution index9,310,1601,154,5352,726,193

      Polk City 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 Polk City temperature with heat index

      Polk City monthly precipitation with daily maximum

      Polk City monthly snow depth with daily maximum

      Polk City monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Woodward, IA1,2353726.0%
      Cambridge, IA9413726.0%
      Kelley, IA3693726.0%
      Sheldahl, IA3373726.0%
      Luther, IA1533726.0%
      Polk City, IA4,7973922.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Goddard, KS4,7974020.0%
      Tyendinaga, ON4,796n/a 
      Edgefield, SC4,800476.0%
      Penns Grove, NJ4,793512.0%
      Wauchula, FL4,8013628.0%
      Polk City, IA4,7973922.0%
      Source: The Polk City, 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.