Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 18°F | 34°F | 25°F | 3.2" |
February | 19°F | 36°F | 27°F | 2.6" |
March | 32°F | 51°F | 40°F | 3.2" |
April | 41°F | 64°F | 51°F | 5.2" |
May | 51°F | 74°F | 62°F | 5.3" |
June | 61°F | 83°F | 71°F | 9.7" |
July | 64°F | 86°F | 74°F | 5.3" |
August | 62°F | 84°F | 73°F | 9.8" |
September | 55°F | 79°F | 66°F | 6.1" |
October | 44°F | 65°F | 54°F | 7.0" |
November | 34°F | 52°F | 42°F | 3.8" |
December | 24°F | 38°F | 31°F | 3.7" |
Index | Onarga | 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. |
Cullom, IL | 501 | 0 | 100.0% |
Roberts, IL | 470 | 42 | 16.0% |
Watseka, IL | 4,956 | 42 | 16.0% |
Crescent City, IL | 485 | 42 | 16.0% |
Thawville, IL | 225 | 42 | 16.0% |
Onarga, IL | 1,134 | 42 | 16.0% |
City | Population | Air Quality Index | National Avg. |
Allison, IA | 1,134 | 39 | 22.0% |
Luna Pier, MI | 1,134 | 1 | 98.0% |
Cottonwood, AL | 1,133 | 35 | 30.0% |
Steele, AL | 1,133 | 43 | 14.0% |
Wickes, AR | 1,133 | 39 | 22.0% |
Onarga, IL | 1,134 | 42 | 16.0% |