Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 20°F | 36°F | 27°F | 5.6" |
February | 20°F | 37°F | 28°F | 3.2" |
March | 33°F | 53°F | 42°F | 4.2" |
April | 44°F | 66°F | 54°F | 7.2" |
May | 54°F | 75°F | 64°F | 7.5" |
June | 63°F | 84°F | 73°F | 7.8" |
July | 64°F | 85°F | 74°F | 7.8" |
August | 62°F | 84°F | 73°F | 10.6" |
September | 56°F | 79°F | 66°F | 7.9" |
October | 45°F | 67°F | 55°F | 7.0" |
November | 34°F | 53°F | 43°F | 6.5" |
December | 26°F | 40°F | 32°F | 5.0" |
Index | Wellington | Illinois | National |
Air quality index | 42 | 41 | 42 |
Pollution index | 2,020,430 | 3,148,694 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 281 |
Days with moderate air quality | 84 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.002% |
Benzene | 0.090% |
Carbon Tetrachloride | 0.000% |
Lead | 0.000% |
Mercury | 0.001% |
City | Population | Air Quality Index | National Avg. |
Rankin, IL | 522 | 42 | 16.0% |
Woodland, IL | 338 | 42 | 16.0% |
Rossville, IL | 1,152 | 42 | 16.0% |
Earl Park, IN | 353 | 42 | 16.0% |
Ambia, IN | 222 | 42 | 16.0% |
Wellington, IL | 237 | 42 | 16.0% |
City | Population | Air Quality Index | National Avg. |
Teller, AK | 237 | 38 | 24.0% |
Ulm, AR | 237 | 45 | 10.0% |
Melvin, IA | 237 | 36 | 28.0% |
McNabb, IL | 237 | 0 | 100.0% |
Menominee, IL | 237 | 29 | 42.0% |
Wellington, IL | 237 | 42 | 16.0% |