TODAY DEC28
TEMPERATURE37
HUMIDITY100
PRESSURE100880
WIND COND.270 13
  • 4130Sun20%
  • 3928Mon20%
  • 3118Tue30%
  • 2413
  • 229Thu
daynightWeather update from Decorah at
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Weather Quick Facts

  • The highest monthly average temperature in Calmar for July is 73 degrees
  • The lowest monthly average temperature in Calmar for January is 19.3 degrees
  • The most monthly precipitation in Calmar occurs in June with 4.3 inches
  • The air quality index in Calmar is 7% better than the national average
  • The pollution index in Calmar is 81% better than the national average

Compare Calmar, IA Weather

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      Calmar 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°F27°F19°F0.5"
      February14°F29°F21°F0.4"
      March29°F45°F36°F1.5"
      April40°F59°F48°F3.4"
      May50°F70°F60°F2.9"
      June61°F79°F69°F4.3"
      July65°F82°F73°F3.9"
      August62°F79°F70°F4.0"
      September54°F73°F63°F3.4"
      October43°F61°F51°F3.0"
      November31°F47°F38°F1.0"
      December18°F31°F24°F0.9"

      Calmar 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.
      IndexCalmarIowaNational
      Air quality index393942
      Pollution index530,4841,154,5352,726,193

      Calmar air quality

      MeasurementTotal
      Days measured363
      Days with good air quality286
      Days with moderate air quality77
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.000%
      Benzene0.010%
      Carbon Tetrachloride0.001%
      Lead0.002%
      Mercury0.000%

      Average monthly Calmar temperature with heat index

      Calmar monthly precipitation with daily maximum

      Calmar monthly snow depth with daily maximum

      Calmar monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Castalia, IA1693530.0%
      Ridgeway, IA2583530.0%
      Decorah, IA7,6153530.0%
      Cresco, IA3,7513628.0%
      Fort Atkinson, IA3823922.0%
      Calmar, IA9893922.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Hymera, IN9894510.0%
      Churchill, MT9892550.0%
      Hideout, UT989512.0%
      Rosa, AL9884314.0%
      Lakeside, IA9903530.0%
      Calmar, IA9893922.0%
      Source: The Calmar, 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.