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 | Bunker Hill | Illinois | National |
Air quality index | 54 | 41 | 42 |
Pollution index | 8,473,050 | 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 | 0.020% |
Benzene | 0.070% |
Carbon Tetrachloride | 0.020% |
Lead | 0.010% |
Mercury | 0.010% |
City | Population | Air Quality Index | National Avg. |
Chesterfield, IL | 208 | 40 | 20.0% |
Brighton, IL | 2,315 | 54 | 8.0% |
Williamson, IL | 202 | 54 | 8.0% |
Gillespie, IL | 2,977 | 54 | 8.0% |
Sawyerville, IL | 242 | 54 | 8.0% |
Bunker Hill, IL | 1,468 | 54 | 8.0% |
City | Population | Air Quality Index | National Avg. |
Williamsville, IL | 1,468 | 40 | 20.0% |
Clarkson, KY | 1,468 | 39 | 22.0% |
Leavittsburg, OH | 1,468 | 42 | 16.0% |
Stratford, OK | 1,468 | 36 | 28.0% |
University of Pittsburgh Johnstown, PA | 1,468 | 39 | 22.0% |
Bunker Hill, IL | 1,468 | 54 | 8.0% |