TODAY MAY29
TEMPERATURE71
HUMIDITY61
PRESSURE29.94
WIND COND.
  • 6949Fri
  • 7148Sat
  • 7254Sun
  • 7765Mon30%
  • 8869Tue
daynightWeather update from Vinton, Vinton Veterans Memorial Airpark Airport at
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Garrison 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
January13°F30°F21°F0.8"
February15°F33°F23°F2.0"
March29°F48°F38°F3.9"
April40°F62°F50°F4.8"
May50°F74°F61°F6.0"
June61°F83°F71°F8.3"
July64°F85°F74°F7.5"
August61°F82°F71°F5.6"
September53°F77°F64°F4.9"
October42°F64°F52°F7.5"
November31°F49°F39°F5.2"
December19°F34°F26°F4.0"

Did you know?

  • The highest monthly average temperature in Garrison for July is 74 degrees.
  • The lowest monthly average temperature in Garrison for January is 21 degrees.
  • The most monthly precipitation in Garrison occurs in June with 8.3 inches.
  • The air quality index in Garrison is 14% better than the national average.
  • The pollution index in Garrison is equal to the national average.

Compare Garrison, IA Weather To Other Cities

      vs

      Garrison 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.
      IndexGarrisonIowaNational
      Air quality index433950
      Pollution index005,066,862

      Garrison air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality240
      Days with moderate air quality122
      Days w/ poor A.Q. for sensitive groups3
      Days with unhealthy air quality

      Garrison air quality information

      PollutantTotal
      Arsenic0.000%
      Benzene0.004%
      Carbon Tetrachloride0.001%
      Lead0.000%
      Mercury0.000%

      Average monthly Garrison temperature with heat index

      Garrison monthly precipitation with daily maximum

      Garrison monthly snow depth with daily maximum

      Garrison monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Van Horne, IA7824216%
      Atkins, IA1,7134216%
      Elberon, IA1934216%
      Newhall, IA9854216%
      Keystone, IA6314216%
      Garrison, IA3524314%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Sibley, IL3523628%
      Norman, AR3523628%
      Cane Beds, AZ3524118%
      Clarks, NE352265430%
      Big Clifty, KY3524314%
      Garrison, IA3524314%
      Source: The Garrison, 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.