| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 13°F | 29°F | 20°F | 0.9" |
| February | 18°F | 35°F | 25°F | 2.3" |
| March | 31°F | 56°F | 41°F | 4.5" |
| April | 40°F | 65°F | 51°F | 7.4" |
| May | 53°F | 77°F | 64°F | 9.7" |
| June | 63°F | 85°F | 73°F | 4.3" |
| July | 65°F | 89°F | 77°F | 4.2" |
| August | 64°F | 85°F | 74°F | 5.9" |
| September | 54°F | 82°F | 67°F | 2.4" |
| October | 42°F | 68°F | 54°F | 2.7" |
| November | 27°F | 53°F | 39°F | 2.5" |
| December | 12°F | 30°F | 21°F | 1.9" |
| Index | Turin | Iowa | National |
| Air quality index | 35 | 39 | 42 |
| Pollution index | 565,451 | 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 | 0.000% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Sloan, IA | 1,035 | 35 | 30.0% |
| Whiting, IA | 829 | 35 | 30.0% |
| Smithland, IA | 168 | 35 | 30.0% |
| Soldier, IA | 199 | 35 | 30.0% |
| Decatur, NE | 402 | 35 | 30.0% |
| Turin, IA | 148 | 35 | 30.0% |
| City | Population | Air Quality Index | National Avg. |
| Billingsley, AL | 148 | 52 | 4.0% |
| Ada, KS | 148 | 32 | 36.0% |
| Allen, KY | 148 | 42 | 16.0% |
| Fairview city, KY | 148 | 40 | 20.0% |
| Garrison, MN | 148 | 29 | 42.0% |
| Turin, IA | 148 | 35 | 30.0% |
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