Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 34°F | 49°F | 41°F | 8.3" |
February | 31°F | 49°F | 39°F | 5.6" |
March | 42°F | 65°F | 52°F | 2.7" |
April | 48°F | 70°F | 58°F | 6.3" |
May | 56°F | 80°F | 68°F | 5.2" |
June | 65°F | 87°F | 75°F | 4.9" |
July | 69°F | 89°F | 78°F | 5.1" |
August | 71°F | 94°F | 82°F | 12.1" |
September | 63°F | 85°F | 73°F | 5.3" |
October | 52°F | 74°F | 62°F | 16.9" |
November | 40°F | 62°F | 50°F | 4.5" |
December | 32°F | 49°F | 39°F | 7.8" |
Index | St. Charles | Kentucky | National |
Air quality index | 40 | 45 | 42 |
Pollution index | 5,501,360 | 1,369,131 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 307 |
Days with moderate air quality | 58 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.010% |
Benzene | 0.130% |
Carbon Tetrachloride | 0.002% |
Lead | 0.020% |
Mercury | 0.800% |
City | Population | Air Quality Index | National Avg. |
Nortonville, KY | 985 | 40 | 20.0% |
White Plains, KY | 949 | 40 | 20.0% |
Dawson Springs, KY | 2,665 | 40 | 20.0% |
Crofton, KY | 434 | 40 | 20.0% |
Earlington, KY | 1,043 | 43 | 14.0% |
St. Charles, KY | 305 | 40 | 20.0% |
City | Population | Air Quality Index | National Avg. |
Iron City, GA | 305 | 35 | 30.0% |
Deloit, IA | 305 | 35 | 30.0% |
Center Point, IN | 305 | 45 | 10.0% |
Newtown, IN | 305 | 42 | 16.0% |
Staunton, IN | 305 | 45 | 10.0% |
St. Charles, KY | 305 | 40 | 20.0% |