Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 25°F | 41°F | 32°F | 5.0" |
February | 26°F | 43°F | 34°F | 3.4" |
March | 38°F | 58°F | 47°F | 4.9" |
April | 47°F | 69°F | 57°F | 9.7" |
May | 57°F | 77°F | 66°F | 7.4" |
June | 66°F | 87°F | 76°F | 8.6" |
July | 68°F | 89°F | 78°F | 6.6" |
August | 66°F | 88°F | 76°F | 8.7" |
September | 58°F | 81°F | 68°F | 7.6" |
October | 47°F | 70°F | 58°F | 7.1" |
November | 37°F | 57°F | 46°F | 6.0" |
December | 30°F | 45°F | 36°F | 6.6" |
Index | Centralia | Illinois | National |
Air quality index | 43 | 41 | 42 |
Pollution index | 647,280 | 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. |
Junction City, IL | 581 | 43 | 14.0% |
Woodlawn, IL | 555 | 43 | 14.0% |
Carlyle, IL | 3,595 | 43 | 14.0% |
Huey, IL | 136 | 43 | 14.0% |
Nashville, IL | 3,076 | 43 | 14.0% |
Centralia, IL | 12,354 | 43 | 14.0% |
City | Population | Air Quality Index | National Avg. |
Wellesley, ON | 12,358 | n/a | |
Grenada, MS | 12,349 | 33 | 34.0% |
Winnetka, IL | 12,361 | 55 | 10.0% |
Lakeland Village, CA | 12,362 | 89 | 78.0% |
Urbana, MD | 12,362 | 40 | 20.0% |
Centralia, IL | 12,354 | 43 | 14.0% |