| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 27°F | 44°F | 34°F | 2.9" |
| February | 28°F | 46°F | 36°F | 2.9" |
| March | 39°F | 60°F | 49°F | 4.7" |
| April | 49°F | 72°F | 60°F | 5.9" |
| May | 58°F | 79°F | 68°F | 4.9" |
| June | 67°F | 88°F | 77°F | 4.9" |
| July | 69°F | 89°F | 79°F | 5.6" |
| August | 68°F | 89°F | 78°F | 3.2" |
| September | 60°F | 83°F | 71°F | 4.9" |
| October | 48°F | 71°F | 59°F | 4.4" |
| November | 38°F | 59°F | 47°F | 3.6" |
| December | 32°F | 48°F | 39°F | 4.4" |
| Index | Lewisport | Kentucky | National |
| Air quality index | 43 | 45 | 42 |
| Pollution index | 3,273,300 | 1,369,131 | 2,726,193 |
| Measurement | Total |
| Days measured | 364 |
| Days with good air quality | 276 |
| Days with moderate air quality | 87 |
| Days w/ poor A.Q. for sensitive groups | 1 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.070% |
| Benzene | 0.004% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.040% |
| Mercury | 0.150% |
| City | Population | Air Quality Index | National Avg. |
| Santa Claus, IN | 2,495 | 6 | 88.0% |
| Gentryville, IN | 383 | 6 | 88.0% |
| Cannelton, IN | 1,353 | 43 | 14.0% |
| Rockport, IN | 2,291 | 43 | 14.0% |
| Hawesville, KY | 956 | 43 | 14.0% |
| Lewisport, KY | 1,824 | 43 | 14.0% |
| City | Population | Air Quality Index | National Avg. |
| Tawas City, MI | 1,824 | 26 | 48.0% |
| Bells, TX | 1,824 | 325 | 550.0% |
| Comer, GA | 1,825 | 44 | 12.0% |
| Pink, OK | 1,823 | 36 | 28.0% |
| Ritzville, WA | 1,823 | 18 | 64.0% |
| Lewisport, KY | 1,824 | 43 | 14.0% |
Here are the best places to live in Kentucky
Most Dangerous Cities In The US
Check out the 10 safest cities in Kentucky
These are the 10 cheapest cities in Kentucky