| 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 | LaFayette | 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. |
| Cadiz, KY | 2,668 | 40 | 20.0% |
| Fort Campbell North, KY | 14,363 | 40 | 20.0% |
| Dover, TN | 1,661 | 40 | 20.0% |
| Hopkinsville, KY | 31,052 | 40 | 20.0% |
| Oak Grove, KY | 7,332 | 40 | 20.0% |
| LaFayette, KY | 168 | 40 | 20.0% |
| City | Population | Air Quality Index | National Avg. |
| Marshall, AK | 168 | 31 | 38.0% |
| Sedgwick, AR | 168 | 45 | 10.0% |
| Elgin, AZ | 168 | 45 | 10.0% |
| La Junta Gardens, CO | 168 | 20 | 60.0% |
| Makena, HI | 168 | 15 | 70.0% |
| LaFayette, KY | 168 | 40 | 20.0% |
Here are the best places to live in Kentucky
Check out the 10 safest cities in Kentucky
See the best places to live in LaFayette
Most Dangerous Cities In The US