TODAY DEC23
TEMPERATURE40
HUMIDITY67
PRESSURE101460
WIND COND.190 16.6
  • 4226Mon
  • 3829Tue
  • 4233
  • 4639Thu20%40%
  • 5039Fri40%40%
daynightWeather update from Des Moines International Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Downtown Des Moines for July is 77.4 degrees
  • The lowest monthly average temperature in Downtown Des Moines for January is 23.5 degrees
  • The most monthly precipitation in Downtown Des Moines occurs in June with 6.5 inches
  • The air quality index in Downtown Des Moines is 7% better than the national average
  • The pollution index in Downtown Des Moines is 242% worse than the national average

Compare Des Moines, IA Weather

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      Downtown Des Moines 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
      January14°F35°F23°F0.9"
      February17°F39°F26°F1.2"
      March30°F54°F41°F2.2"
      April41°F67°F53°F4.9"
      May51°F76°F63°F4.9"
      June62°F86°F74°F6.5"
      July66°F89°F77°F4.2"
      August64°F87°F75°F5.1"
      September56°F81°F68°F3.7"
      October43°F68°F55°F3.2"
      November31°F54°F42°F1.8"
      December18°F38°F27°F2.1"

      Downtown Des Moines 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.
      IndexDowntown Des MoinesDes MoinesIowa
      Air quality index393939
      Pollution index9,310,1609,310,1601,154,535

      Downtown Des Moines 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 Downtown Des Moines temperature with heat index

      Downtown Des Moines monthly precipitation with daily maximum

      Downtown Des Moines monthly snow depth with daily maximum

      Downtown Des Moines monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Altoona, IA18,9173922.0%
      Pleasant Hill, IA9,9593922.0%
      Windsor Heights, IA4,8893922.0%
      Johnston, IA22,0773922.0%
      Granger, IA1,8903922.0%
      Des Moines, IA215,4083922.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Richmond Hill, ON215,407n/a 
      Tacoma, WA215,7661864.0%
      Enterprise, NV214,591548.0%
      Modesto, CA214,485492.0%
      San Bernardino, CA216,7848978.0%
      Des Moines, IA215,4083922.0%
      Source: The Downtown Des Moines, Des Moines, 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.