TODAY MAR19
TEMPERATURE23
HUMIDITY62
PRESSURE101830
WIND COND.210 11.2
  • 5725Tue
  • 4123Wed
  • 4431Thu70%
  • 4624Fri80%
  • 4328Sat40%
daynightWeather update from Cedar Rapids Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Fairfax for July is 73.2 degrees
  • The lowest monthly average temperature in Fairfax for January is 20.1 degrees
  • The most monthly precipitation in Fairfax occurs in June with 7 inches
  • The air quality index in Fairfax is 7% better than the national average
  • The pollution index in Fairfax is 86% worse than the national average

Compare Fairfax, IA Weather

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      Fairfax 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°F29°F20°F0.8"
      February14°F32°F23°F1.0"
      March28°F48°F37°F2.1"
      April39°F63°F50°F4.6"
      May50°F73°F61°F3.9"
      June60°F81°F70°F7.0"
      July63°F84°F73°F4.8"
      August61°F82°F71°F4.7"
      September53°F76°F64°F4.0"
      October42°F63°F52°F3.1"
      November29°F49°F38°F2.1"
      December17°F33°F25°F1.9"

      Fairfax 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.
      IndexFairfaxIowaNational
      Air quality index393942
      Pollution index5,075,3801,154,5352,726,193

      Fairfax air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality287
      Days with moderate air quality78
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Fairfax air quality information

      PollutantTotal
      Arsenic0.070%
      Benzene0.050%
      Carbon Tetrachloride2.000%
      Lead0.040%
      Mercury0.100%

      Average monthly Fairfax temperature with heat index

      Fairfax monthly precipitation with daily maximum

      Fairfax monthly snow depth with daily maximum

      Fairfax monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Tiffin, IA3,7793530.0%
      North Liberty, IA19,1593530.0%
      Solon, IA2,6903530.0%
      Oxford, IA7073530.0%
      Cedar Rapids, IA133,1253922.0%
      Fairfax, IA2,7703922.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Green Harbor-Cedar Crest, MA2,7704314.0%
      Souris-Glenwood, MB2,770n/a 
      Big Lake, AK2,7693138.0%
      Knob Noster, MO2,769476.0%
      Dallas, PA2,7693824.0%
      Fairfax, IA2,7703922.0%
      Source: The Fairfax, 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.