| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 24°F | 42°F | 32°F | 3.2" |
| February | 25°F | 43°F | 33°F | 2.4" |
| March | 33°F | 55°F | 43°F | 3.9" |
| April | 43°F | 68°F | 55°F | 4.1" |
| May | 52°F | 75°F | 63°F | 4.3" |
| June | 60°F | 82°F | 71°F | 4.8" |
| July | 64°F | 85°F | 74°F | 6.0" |
| August | 63°F | 84°F | 73°F | 4.0" |
| September | 57°F | 79°F | 67°F | 3.2" |
| October | 46°F | 67°F | 56°F | 3.9" |
| November | 36°F | 57°F | 46°F | 2.7" |
| December | 29°F | 46°F | 37°F | 4.1" |
| Index | Rowlesburg | West Virginia | National |
| Air quality index | 36 | 126 | 42 |
| Pollution index | 323,222 | 1,996,538 | 2,726,193 |
| Measurement | Total |
| Days measured | 364 |
| Days with good air quality | 337 |
| Days with moderate air quality | 27 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.004% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.003% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| St. George, WV | 128 | 31 | 38.0% |
| Newburg, WV | 281 | 31 | 38.0% |
| Tunnelton, WV | 370 | 36 | 28.0% |
| Terra Alta, WV | 1,757 | 36 | 28.0% |
| Thomas, WV | 517 | 36 | 28.0% |
| Rowlesburg, WV | 468 | 36 | 28.0% |
| City | Population | Air Quality Index | National Avg. |
| Black, AL | 468 | 35 | 30.0% |
| Paradise Park, CA | 468 | 35 | 30.0% |
| Jupiter Inlet Colony, FL | 468 | 36 | 28.0% |
| De Land, IL | 468 | 42 | 16.0% |
| Oak Run, IL | 468 | 41 | 18.0% |
| Rowlesburg, WV | 468 | 36 | 28.0% |
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