TODAY OCT20
TEMPERATURE50
HUMIDITY50
PRESSURE30.23
WIND COND.
  • 5841Sun
  • 6337Mon
  • 5535Tue
  • 5641Wed
  • 5341Thu40%
daynightWeather update from Des Moines, Des Moines International Airport at
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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"

Did you know?

  • The highest monthly average temperature in Des Moines for July is 77 degrees.
  • The lowest monthly average temperature in Des Moines for January is 23 degrees.
  • The most monthly precipitation in Des Moines occurs in June with 6.5 inches.
  • The air quality index in Des Moines is 17% better than the national average.
  • The pollution index in Des Moines is 83% worse than the national average.

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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.
IndexDes MoinesIowaNational
Air quality index413950
Pollution index9,310,1601,643,8365,066,862

Des Moines air quality information

MeasurementTotal
Days measured365
Days with good air quality267
Days with moderate air quality98
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Des Moines air quality information

PollutantTotal
Arsenic0.010%
Benzene0.110%
Carbon Tetrachloride0.080%
Lead0.030%
Mercury0.010%

Average monthly Des Moines temperature with heat index

Des Moines monthly precipitation with daily maximum

Des Moines monthly snow depth with daily maximum

Des Moines monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
West Des Moines, IA61,6244118%
Altoona, IA16,6924118%
Carlisle, IA4,0314118%
Grimes, IA10,4224118%
Martensdale, IA4524118%
Des Moines, IA212,8594118%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Birmingham, AL212,42450= 100
Spokane, WA212,0783922%
San Bernardino, CA214,5818570%
Rochester, NY210,2913628%
Richmond, VA216,7733922%
Des Moines, IA212,8594118%
Source: The 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.