Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 26°F | 45°F | 35°F | 2.7" |
February | 29°F | 49°F | 38°F | 2.5" |
March | 38°F | 60°F | 48°F | 4.6" |
April | 48°F | 72°F | 60°F | 7.3" |
May | 57°F | 79°F | 68°F | 5.6" |
June | 66°F | 88°F | 77°F | 4.4" |
July | 69°F | 90°F | 79°F | 3.7" |
August | 66°F | 88°F | 76°F | 3.0" |
September | 58°F | 83°F | 70°F | 4.7" |
October | 47°F | 73°F | 59°F | 2.2" |
November | 37°F | 58°F | 47°F | 4.8" |
December | 31°F | 48°F | 39°F | 3.6" |
Index | Mill Creek | Illinois | National |
Air quality index | 44 | 41 | 42 |
Pollution index | 2,331,220 | 3,148,694 | 2,726,193 |
Measurement | Total |
Days measured | 364 |
Days with good air quality | 261 |
Days with moderate air quality | 103 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.010% |
Benzene | 0.030% |
Carbon Tetrachloride | 0.004% |
Lead | 0.002% |
Mercury | 0.260% |
City | Population | Air Quality Index | National Avg. |
Dongola, IL | 654 | 44 | 12.0% |
Pulaski, IL | 257 | 44 | 12.0% |
Cypress, IL | 216 | 44 | 12.0% |
Thebes, IL | 550 | 44 | 12.0% |
Jonesboro, IL | 1,772 | 44 | 12.0% |
Mill Creek, IL | 30 | 44 | 12.0% |
City | Population | Air Quality Index | National Avg. |
Alatna, AK | 30 | 38 | 24.0% |
Skwentna, AK | 30 | 31 | 38.0% |
Fourche, AR | 30 | 45 | 10.0% |
Hidden Lake, CO | 30 | 47 | 6.0% |
Gibson, IA | 30 | 35 | 30.0% |
Mill Creek, IL | 30 | 44 | 12.0% |