Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 25°F | 44°F | 34°F | 2.3" |
February | 27°F | 46°F | 36°F | 2.5" |
March | 38°F | 60°F | 48°F | 4.8" |
April | 47°F | 70°F | 58°F | 6.2" |
May | 56°F | 78°F | 67°F | 4.9" |
June | 66°F | 88°F | 76°F | 4.1" |
July | 68°F | 89°F | 78°F | 5.0" |
August | 66°F | 88°F | 76°F | 3.5" |
September | 57°F | 81°F | 68°F | 3.4" |
October | 46°F | 71°F | 58°F | 3.6" |
November | 36°F | 58°F | 46°F | 3.7" |
December | 30°F | 47°F | 38°F | 3.7" |
Index | Dowell | 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. |
Elkville, IL | 796 | 43 | 14.0% |
Vergennes, IL | 238 | 43 | 14.0% |
Carterville, IL | 5,861 | 43 | 14.0% |
Colp, IL | 234 | 43 | 14.0% |
Herrin, IL | 12,806 | 43 | 14.0% |
Dowell, IL | 356 | 43 | 14.0% |
City | Population | Air Quality Index | National Avg. |
Higgston, GA | 356 | 26 | 48.0% |
Angie, LA | 356 | 35 | 30.0% |
Kingston, MI | 356 | 38 | 24.0% |
St. Martin, MN | 356 | 32 | 36.0% |
Artesia, MS | 356 | 39 | 22.0% |
Dowell, IL | 356 | 43 | 14.0% |