Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 12°F | 30°F | 21°F | 0.8" |
February | 14°F | 34°F | 23°F | 1.0" |
March | 28°F | 49°F | 37°F | 2.2" |
April | 39°F | 63°F | 49°F | 4.1" |
May | 49°F | 73°F | 60°F | 5.2" |
June | 60°F | 83°F | 71°F | 7.1" |
July | 64°F | 86°F | 75°F | 4.2" |
August | 62°F | 83°F | 71°F | 5.5" |
September | 53°F | 77°F | 63°F | 2.8" |
October | 41°F | 64°F | 51°F | 4.0" |
November | 28°F | 49°F | 38°F | 3.7" |
December | 16°F | 33°F | 24°F | 2.5" |
Index | Sioux Center | Iowa | National |
Air quality index | 35 | 39 | 42 |
Pollution index | 3,266,490 | 1,154,535 | 2,726,193 |
Measurement | Total |
Days measured | 364 |
Days with good air quality | 322 |
Days with moderate air quality | 42 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.070% |
Benzene | 0.020% |
Carbon Tetrachloride | 0.004% |
Lead | 0.020% |
Mercury | 0.060% |
City | Population | Air Quality Index | National Avg. |
Craig, IA | 42 | 35 | 30.0% |
Orange City, IA | 6,158 | 35 | 30.0% |
Granville, IA | 317 | 35 | 30.0% |
Struble, IA | 95 | 35 | 30.0% |
Ireton, IA | 664 | 35 | 30.0% |
Sioux Center, IA | 7,592 | 35 | 30.0% |
City | Population | Air Quality Index | National Avg. |
Clear Lake, IA | 7,594 | 15 | 70.0% |
Corning, CA | 7,589 | 41 | 18.0% |
Yreka, CA | 7,589 | 36 | 28.0% |
Princeton, IL | 7,589 | 0 | 100.0% |
Interlaken, CA | 7,596 | 35 | 30.0% |
Sioux Center, IA | 7,592 | 35 | 30.0% |