| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 27°F | 47°F | 36°F | n/a |
| February | 27°F | 50°F | 37°F | n/a |
| March | 39°F | 61°F | 49°F | n/a |
| April | 48°F | 73°F | 59°F | n/a |
| May | 54°F | 76°F | 64°F | n/a |
| June | 62°F | 82°F | 72°F | n/a |
| July | 66°F | 84°F | 74°F | n/a |
| August | 64°F | 83°F | 72°F | n/a |
| September | 58°F | 80°F | 68°F | n/a |
| October | 48°F | 71°F | 58°F | n/a |
| November | 38°F | 60°F | 48°F | n/a |
| December | 34°F | 52°F | 42°F | n/a |
| Index | McCarr | Kentucky | National |
| Air quality index | 295 | 45 | 42 |
| Pollution index | 780,751 | 1,369,131 | 2,726,193 |
| Measurement | Total |
| Days measured | 120 |
| Days with good air quality | 106 |
| Days with moderate air quality | 14 |
| Days w/ poor A.Q. for sensitive groups | |
| Days with unhealthy air quality |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| McConnell, WV | 812 | 40 | 20.0% |
| Omar, WV | 380 | 40 | 20.0% |
| Switzer, WV | 293 | 40 | 20.0% |
| Chauncey, WV | 402 | 40 | 20.0% |
| Monaville, WV | 355 | 40 | 20.0% |
| McCarr, KY | 225 | 295 | 490.0% |
| City | Population | Air Quality Index | National Avg. |
| Jeddito, AZ | 225 | 17 | 66.0% |
| Marble, CO | 225 | 44 | 12.0% |
| Conroy, IA | 225 | 39 | 22.0% |
| Luxemburg, IA | 225 | 29 | 42.0% |
| Napoleon, IN | 225 | 41 | 18.0% |
| McCarr, KY | 225 | 295 | 490.0% |
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