TODAY MAR19
TEMPERATURE30
HUMIDITY55
PRESSURE101320
WIND COND.220 22.3
  • 6328Tue
  • 4326Wed
  • 4634Thu20%20%
  • 4821Fri60%
  • 4027Sat40%
daynightWeather update from Creston Municipal Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Cromwell for July is 76.6 degrees
  • The lowest monthly average temperature in Cromwell for January is 26.1 degrees
  • The most monthly precipitation in Cromwell occurs in September with 9.2 inches
  • The air quality index in Cromwell is 7% better than the national average
  • The pollution index in Cromwell is 88% better than the national average

Compare Cromwell, IA Weather

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      Cromwell 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
      January20°F34°F26°F2.9"
      February27°F47°F36°F2.2"
      March35°F56°F44°F8.3"
      April45°F65°F54°F4.8"
      May51°F73°F61°F6.4"
      June63°F87°F75°F4.8"
      July67°F88°F77°F8.0"
      August62°F84°F72°F5.8"
      September58°F81°F69°F9.2"
      October46°F69°F56°F8.5"
      November35°F56°F45°F4.1"
      December21°F36°F28°F2.6"

      Cromwell 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.
      IndexCromwellIowaNational
      Air quality index393942
      Pollution index338,7731,154,5352,726,193

      Cromwell air quality information

      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

      Cromwell air quality information

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

      Average monthly Cromwell temperature with heat index

      Cromwell monthly precipitation with daily maximum

      Cromwell monthly snow depth with daily maximum

      Cromwell monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Shannon City, IA1083922.0%
      Macksburg, IA973922.0%
      Tingley, IA1053922.0%
      Creston, IA7,7543922.0%
      Orient, IA4343922.0%
      Cromwell, IA723922.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      New Blaine, AR723628.0%
      Seba Dalkai, AZ724510.0%
      Mabie, CA724412.0%
      Smeltertown, CO721668.0%
      Ranger, GA724314.0%
      Cromwell, IA723922.0%
      Source: The Cromwell, 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.