Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 27°F | 43°F | 34°F | 5.0" |
February | 28°F | 46°F | 36°F | 4.8" |
March | 39°F | 59°F | 48°F | 4.5" |
April | 48°F | 70°F | 58°F | 10.6" |
May | 57°F | 78°F | 67°F | 6.0" |
June | 66°F | 87°F | 76°F | 7.6" |
July | 67°F | 88°F | 77°F | 6.8" |
August | 65°F | 87°F | 76°F | 5.4" |
September | 58°F | 82°F | 69°F | 6.5" |
October | 47°F | 71°F | 58°F | 3.5" |
November | 37°F | 58°F | 47°F | 6.2" |
December | 31°F | 47°F | 38°F | 8.9" |
Index | Omaha | Illinois | National |
Air quality index | 45 | 41 | 42 |
Pollution index | 4,489,340 | 3,148,694 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 244 |
Days with moderate air quality | 111 |
Days w/ poor A.Q. for sensitive groups | 10 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.080% |
Benzene | 0.020% |
Carbon Tetrachloride | 0.002% |
Lead | 0.020% |
Mercury | 0.050% |
City | Population | Air Quality Index | National Avg. |
Norris City, IL | 1,325 | 43 | 14.0% |
Muddy, IL | 38 | 43 | 14.0% |
Broughton, IL | 116 | 43 | 14.0% |
Harrisburg, IL | 8,578 | 43 | 14.0% |
Eldorado, IL | 4,000 | 43 | 14.0% |
Omaha, IL | 237 | 45 | 10.0% |
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% |
Omaha, IL | 237 | 45 | 10.0% |