Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 27°F | 44°F | 35°F | 2.5" |
February | 29°F | 46°F | 37°F | 1.6" |
March | 40°F | 59°F | 49°F | 4.1" |
April | 50°F | 70°F | 59°F | 10.7" |
May | 58°F | 78°F | 68°F | 10.5" |
June | 67°F | 87°F | 77°F | 13.3" |
July | 70°F | 88°F | 79°F | 0.5" |
August | 68°F | 88°F | 77°F | 0.4" |
September | 61°F | 81°F | 70°F | 1.2" |
October | 50°F | 70°F | 59°F | 0.8" |
November | 39°F | 58°F | 48°F | 5.8" |
December | 32°F | 47°F | 39°F | 1.2" |
Index | Marion | Illinois | National |
Air quality index | 43 | 41 | 42 |
Pollution index | 125,359 | 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 | 0.000% |
Benzene | 0.003% |
Carbon Tetrachloride | 0.000% |
Lead | 0.000% |
Mercury | 0.000% |
City | Population | Air Quality Index | National Avg. |
Zeigler, IL | 1,779 | 43 | 14.0% |
Crainville, IL | 1,372 | 43 | 14.0% |
Whiteash, IL | 83 | 43 | 14.0% |
Herrin, IL | 12,806 | 43 | 14.0% |
Orient, IL | 434 | 43 | 14.0% |
Marion, IL | 17,539 | 43 | 14.0% |
City | Population | Air Quality Index | National Avg. |
Godfrey, IL | 17,540 | 54 | 8.0% |
Lithia Springs, GA | 17,545 | 52 | 4.0% |
Bostonia, CA | 17,532 | 64 | 28.0% |
Wantagh, NY | 17,548 | 51 | 2.0% |
Manassas Park, VA | 17,548 | 47 | 6.0% |
Marion, IL | 17,539 | 43 | 14.0% |