| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 23°F | 40°F | 31°F | 5.3" |
| February | 24°F | 43°F | 33°F | 3.4" |
| March | 36°F | 57°F | 45°F | 4.0" |
| April | 46°F | 69°F | 56°F | 7.6" |
| May | 56°F | 77°F | 66°F | 6.3" |
| June | 64°F | 86°F | 75°F | 6.7" |
| July | 66°F | 87°F | 76°F | 5.7" |
| August | 63°F | 86°F | 74°F | 4.9" |
| September | 56°F | 82°F | 67°F | 5.9" |
| October | 46°F | 70°F | 57°F | 5.6" |
| November | 35°F | 56°F | 44°F | 5.6" |
| December | 28°F | 44°F | 35°F | 4.9" |
| Index | Hutsonville | Illinois | National |
| Air quality index | 45 | 41 | 42 |
| Pollution index | 1,453,840 | 3,148,694 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 237 |
| Days with moderate air quality | 127 |
| Days w/ poor A.Q. for sensitive groups | 1 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.010% |
| Benzene | 0.030% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.004% |
| Mercury | 0.010% |
| City | Population | Air Quality Index | National Avg. |
| Flat Rock, IL | 464 | 36 | 28.0% |
| Stoy, IL | 146 | 36 | 28.0% |
| Oblong, IL | 1,520 | 36 | 28.0% |
| Carlisle, IN | 544 | 36 | 28.0% |
| Palestine, IL | 1,200 | 36 | 28.0% |
| Hutsonville, IL | 568 | 45 | 10.0% |
| City | Population | Air Quality Index | National Avg. |
| Dustin Acres, CA | 568 | 67 | 34.0% |
| Hopkinton, IA | 568 | 39 | 22.0% |
| Scranton, IA | 568 | 37 | 26.0% |
| Firth, ID | 568 | 27 | 46.0% |
| Grayson, LA | 568 | 34 | 32.0% |
| Hutsonville, IL | 568 | 45 | 10.0% |
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