| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 26°F | 45°F | 34°F | 4.2" |
| February | 29°F | 50°F | 38°F | 4.0" |
| March | 38°F | 60°F | 48°F | 4.9" |
| April | 48°F | 73°F | 59°F | 5.8" |
| May | 55°F | 78°F | 65°F | 5.2" |
| June | 63°F | 84°F | 72°F | 5.1" |
| July | 66°F | 85°F | 75°F | 6.8" |
| August | 65°F | 84°F | 73°F | 5.6" |
| September | 59°F | 79°F | 68°F | 3.2" |
| October | 48°F | 70°F | 58°F | 3.7" |
| November | 38°F | 60°F | 48°F | 2.9" |
| December | 32°F | 50°F | 40°F | 5.2" |
| Index | Mayking | Kentucky | National |
| Air quality index | 45 | 45 | 42 |
| Pollution index | 7,824,360 | 1,369,131 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 236 |
| Days with moderate air quality | 108 |
| Days w/ poor A.Q. for sensitive groups | 21 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.060% |
| Benzene | 0.070% |
| Carbon Tetrachloride | 0.020% |
| Lead | 0.070% |
| Mercury | 0.030% |
| City | Population | Air Quality Index | National Avg. |
| Blackey, KY | 87 | 45 | 10.0% |
| Pippa Passes, KY | 703 | 45 | 10.0% |
| McRoberts, KY | 821 | 45 | 10.0% |
| Cumberland, KY | 2,171 | 45 | 10.0% |
| Fleming-Neon, KY | 510 | 45 | 10.0% |
| Mayking, KY | 528 | 45 | 10.0% |
| City | Population | Air Quality Index | National Avg. |
| Burlington, IL | 528 | 42 | 16.0% |
| La Crosse, IN | 528 | 37 | 26.0% |
| Taylorsville, IN | 528 | 41 | 18.0% |
| Maddock, ND | 528 | 36 | 28.0% |
| Brushton, NY | 528 | 0 | 100.0% |
| Mayking, KY | 528 | 45 | 10.0% |