TODAY DEC29
TEMPERATURE37
HUMIDITY100
PRESSURE100880
WIND COND.180 7.6
  • 4027Mon50%70%
  • 3320Tue
  • 3018
  • 2911Thu
  • 228Fri
daynightWeather update from Ankeny Regional Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Granger for July is 74 degrees
  • The lowest monthly average temperature in Granger for January is 21 degrees
  • The most monthly precipitation in Granger occurs in August with 2.2 inches
  • The air quality index in Granger is 7% better than the national average
  • The pollution index in Granger is 242% worse than the national average

Compare Granger, IA Weather

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      Granger 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°F31°F21°F0.7"
      February15°F35°F24°F0.6"
      March29°F50°F38°F1.0"
      April40°F64°F51°F1.2"
      May50°F75°F62°F1.5"
      June61°F84°F72°F1.9"
      July63°F86°F74°F1.3"
      August61°F83°F71°F2.2"
      September53°F79°F65°F2.1"
      October41°F67°F53°F1.6"
      November30°F52°F39°F0.8"
      December18°F37°F26°F0.9"

      Granger 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.
      IndexGrangerIowaNational
      Air quality index393942
      Pollution index9,310,1601,154,5352,726,193

      Granger 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 Granger temperature with heat index

      Granger monthly precipitation with daily maximum

      Granger monthly snow depth with daily maximum

      Granger monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Huxley, IA3,9123726.0%
      Luther, IA1533726.0%
      Madrid, IA2,5703726.0%
      Alleman, IA4383726.0%
      Bouton, IA1653726.0%
      Granger, IA1,8903922.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Bertram, TX1,8904216.0%
      Petit-Rocher, NB1,890n/a 
      Belleville, KS1,8893236.0%
      St. Francisville, LA1,8914510.0%
      Wellston, MO1,891548.0%
      Granger, IA1,8903922.0%
      Source: The Granger, 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.