| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 28°F | 50°F | 38°F | 4.7" |
| February | 28°F | 54°F | 40°F | 5.5" |
| March | 38°F | 65°F | 51°F | 3.3" |
| April | 47°F | 74°F | 59°F | 5.4" |
| May | 59°F | 80°F | 69°F | 6.8" |
| June | 64°F | 85°F | 74°F | 6.0" |
| July | 67°F | 88°F | 77°F | 4.4" |
| August | 64°F | 85°F | 74°F | 7.2" |
| September | 61°F | 82°F | 70°F | 6.1" |
| October | 48°F | 74°F | 60°F | 8.6" |
| November | 36°F | 62°F | 48°F | 7.5" |
| December | 33°F | 57°F | 44°F | 5.9" |
| Index | McKenney | Virginia | National |
| Air quality index | 44 | 58 | 42 |
| Pollution index | 184,722 | 1,561,881 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 272 |
| Days with moderate air quality | 93 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.010% |
| Benzene | 0.002% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.003% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Warfield, VA | 65 | 44 | 12.0% |
| Camptown, VA | 761 | 44 | 12.0% |
| Jarratt, VA | 866 | 44 | 12.0% |
| Alberta, VA | 341 | 44 | 12.0% |
| McKenney, VA | 557 | 44 | 12.0% |
| City | Population | Air Quality Index | National Avg. |
| Aniak, AK | 557 | 31 | 38.0% |
| Batavia, IA | 557 | 29 | 42.0% |
| Audubon, MN | 557 | 33 | 34.0% |
| Branson West, MO | 557 | 18 | 64.0% |
| Tannersville, NY | 557 | 36 | 28.0% |
| McKenney, VA | 557 | 44 | 12.0% |
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