Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 14°F | 35°F | 23°F | 0.9" |
February | 17°F | 39°F | 26°F | 1.2" |
March | 30°F | 54°F | 41°F | 2.2" |
April | 41°F | 67°F | 53°F | 4.9" |
May | 51°F | 76°F | 63°F | 4.9" |
June | 62°F | 86°F | 74°F | 6.5" |
July | 66°F | 89°F | 77°F | 4.2" |
August | 64°F | 87°F | 75°F | 5.1" |
September | 56°F | 81°F | 68°F | 3.7" |
October | 43°F | 68°F | 55°F | 3.2" |
November | 31°F | 54°F | 42°F | 1.8" |
December | 18°F | 38°F | 27°F | 2.1" |
Index | West Des Moines | Iowa | National |
Air quality index | 39 | 39 | 50 |
Pollution index | 9,310,160 | 1,643,836 | 5,066,862 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 306 |
Days with moderate air quality | 59 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.010% |
Benzene | 0.110% |
Carbon Tetrachloride | 0.080% |
Lead | 0.030% |
Mercury | 0.010% |
City, State | Population | Air Quality Index | National Avg. |
Cumming, IA | 415 | 39 | 22% |
Urbandale, IA | 41,578 | 39 | 22% |
Ankeny, IA | 53,413 | 39 | 22% |
Polk City, IA | 4,115 | 39 | 22% |
Grimes, IA | 10,422 | 39 | 22% |
West Des Moines, IA | 61,624 | 39 | 22% |
City, State | Population | Air Quality Index | National Avg. |
La Habra, CA | 61,660 | 72 | 44% |
Tulare, CA | 61,664 | 66 | 32% |
Taylor, MI | 61,716 | 56 | 12% |
Brentwood, NY | 61,438 | 43 | 14% |
Wellington, FL | 61,371 | 36 | 28% |
West Des Moines, IA | 61,624 | 39 | 22% |