Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 12°F | 27°F | 19°F | 0.7" |
February | 13°F | 29°F | 21°F | 0.7" |
March | 29°F | 45°F | 36°F | 1.7" |
April | 39°F | 60°F | 48°F | 2.8" |
May | 50°F | 71°F | 60°F | 2.4" |
June | 60°F | 80°F | 70°F | 5.1" |
July | 62°F | 82°F | 72°F | 2.5" |
August | 60°F | 79°F | 69°F | 2.3" |
September | 53°F | 75°F | 63°F | 3.0" |
October | 42°F | 61°F | 50°F | 2.8" |
November | 29°F | 47°F | 37°F | 1.1" |
December | 17°F | 31°F | 24°F | 1.8" |
Index | West Union | Iowa | National |
Air quality index | 39 | 39 | 42 |
Pollution index | 530,484 | 1,154,535 | 2,726,193 |
Measurement | Total |
Days measured | 363 |
Days with good air quality | 286 |
Days with moderate air quality | 77 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.000% |
Benzene | 0.010% |
Carbon Tetrachloride | 0.001% |
Lead | 0.002% |
Mercury | 0.000% |
City | Population | Air Quality Index | National Avg. |
Postville, IA | 2,528 | 35 | 30.0% |
Castalia, IA | 169 | 35 | 30.0% |
Arlington, IA | 496 | 39 | 22.0% |
Clermont, IA | 482 | 39 | 22.0% |
Hawkeye, IA | 488 | 39 | 22.0% |
West Union, IA | 2,630 | 39 | 22.0% |
City | Population | Air Quality Index | National Avg. |
Verona Walk, FL | 2,630 | 34 | 32.0% |
Fritch, TX | 2,630 | 44 | 12.0% |
Lacolle, QC | 2,629 | n/a | |
Ridgeway, AK | 2,631 | 31 | 38.0% |
Wallace, FL | 2,631 | 41 | 18.0% |
West Union, IA | 2,630 | 39 | 22.0% |