| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 16°F | 34°F | 25°F | 2.3" |
| February | 18°F | 36°F | 27°F | 2.3" |
| March | 29°F | 49°F | 39°F | 2.8" |
| April | 38°F | 63°F | 50°F | 3.9" |
| May | 48°F | 73°F | 60°F | 5.4" |
| June | 59°F | 83°F | 71°F | 4.5" |
| July | 64°F | 86°F | 75°F | 5.2" |
| August | 63°F | 84°F | 74°F | 4.4" |
| September | 56°F | 78°F | 66°F | 3.6" |
| October | 44°F | 65°F | 54°F | 3.4" |
| November | 32°F | 52°F | 42°F | 2.3" |
| December | 21°F | 38°F | 29°F | 2.9" |
| Index | Bensenville | Illinois | National |
| Air quality index | 55 | 41 | 42 |
| Pollution index | 14,981,300 | 3,148,694 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 121 |
| Days with moderate air quality | 227 |
| Days w/ poor A.Q. for sensitive groups | 16 |
| Days with unhealthy air quality | 1 |
| Pollutant | Total |
| Arsenic | 0.010% |
| Benzene | 0.140% |
| Carbon Tetrachloride | 0.030% |
| Lead | 0.020% |
| Mercury | 0.010% |
| City | Population | Air Quality Index | National Avg. |
| Melrose Park, IL | 25,404 | 55 | 10.0% |
| Inverness, IL | 7,959 | 55 | 10.0% |
| Justice, IL | 12,677 | 55 | 10.0% |
| North Riverside, IL | 6,460 | 55 | 10.0% |
| Riverside, IL | 8,748 | 55 | 10.0% |
| Bensenville, IL | 18,273 | 55 | 10.0% |
| City | Population | Air Quality Index | National Avg. |
| Schofield Barracks, HI | 18,276 | 30 | 40.0% |
| Hyattsville, MD | 18,267 | 47 | 6.0% |
| Arcata, CA | 18,266 | 27 | 46.0% |
| Menasha, WI | 18,280 | 37 | 26.0% |
| San Carlos Park, FL | 18,256 | 36 | 28.0% |
| Bensenville, IL | 18,273 | 55 | 10.0% |
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