| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 24°F | 41°F | 31°F | 3.4" |
| February | 25°F | 43°F | 33°F | 3.7" |
| March | 38°F | 57°F | 46°F | 3.1" |
| April | 47°F | 68°F | 56°F | 6.6" |
| May | 56°F | 76°F | 65°F | 6.1" |
| June | 65°F | 85°F | 75°F | 3.5" |
| July | 67°F | 87°F | 77°F | 7.3" |
| August | 66°F | 86°F | 75°F | 6.8" |
| September | 58°F | 80°F | 68°F | 4.4" |
| October | 47°F | 68°F | 57°F | 6.7" |
| November | 36°F | 56°F | 45°F | 4.9" |
| December | 28°F | 43°F | 35°F | 6.3" |
| Index | Alhambra | Illinois | National |
| Air quality index | 54 | 41 | 42 |
| Pollution index | 647,280 | 3,148,694 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 134 |
| Days with moderate air quality | 221 |
| Days w/ poor A.Q. for sensitive groups | 8 |
| Days with unhealthy air quality | 2 |
| Pollutant | Total |
| Arsenic | 0.001% |
| Benzene | 0.020% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Collinsville, IL | 24,489 | 54 | 8.0% |
| Livingston, IL | 789 | 54 | 8.0% |
| Staunton, IL | 4,528 | 54 | 8.0% |
| Mount Clare, IL | 370 | 54 | 8.0% |
| White City, IL | 197 | 54 | 8.0% |
| Alhambra, IL | 676 | 54 | 8.0% |
| City | Population | Air Quality Index | National Avg. |
| Cannonsburg, KY | 676 | 42 | 16.0% |
| Estherwood, LA | 676 | 41 | 18.0% |
| Sunfield, MI | 676 | 36 | 28.0% |
| Arcadia, OH | 676 | 40 | 20.0% |
| Valleyview, OH | 676 | 46 | 8.0% |
| Alhambra, IL | 676 | 54 | 8.0% |
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