Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 23°F | 42°F | 32°F | 3.7" |
February | 25°F | 44°F | 34°F | 3.5" |
March | 37°F | 58°F | 46°F | 5.2" |
April | 46°F | 70°F | 57°F | 8.7" |
May | 54°F | 77°F | 65°F | 6.1" |
June | 63°F | 87°F | 74°F | 8.3" |
July | 66°F | 89°F | 77°F | 8.1" |
August | 64°F | 88°F | 75°F | 11.0" |
September | 57°F | 81°F | 68°F | 5.5" |
October | 45°F | 70°F | 56°F | 5.6" |
November | 34°F | 56°F | 44°F | 7.5" |
December | 28°F | 45°F | 36°F | 6.9" |
Index | Nason | Illinois | National |
Air quality index | 43 | 41 | 42 |
Pollution index | 569,178 | 3,148,694 | 2,726,193 |
Measurement | Total |
Days measured | 344 |
Days with good air quality | 269 |
Days with moderate air quality | 74 |
Days w/ poor A.Q. for sensitive groups | 1 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.001% |
Benzene | 0.020% |
Carbon Tetrachloride | 0.000% |
Lead | 0.000% |
Mercury | 0.000% |
City | Population | Air Quality Index | National Avg. |
Mount Vernon, IL | 14,769 | 43 | 14.0% |
Mulkeytown, IL | 128 | 43 | 14.0% |
Radom, IL | 136 | 43 | 14.0% |
St. Johns, IL | 160 | 43 | 14.0% |
Du Quoin, IL | 5,723 | 43 | 14.0% |
Nason, IL | 221 | 43 | 14.0% |
City | Population | Air Quality Index | National Avg. |
Newbern, AL | 221 | 35 | 30.0% |
Widener, AR | 221 | 45 | 10.0% |
Jeddito, AZ | 221 | 17 | 66.0% |
Conroy, IA | 221 | 39 | 22.0% |
Moorhead, IA | 221 | 40 | 20.0% |
Nason, IL | 221 | 43 | 14.0% |