| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 24°F | 43°F | 33°F | 2.3" |
| February | 25°F | 45°F | 34°F | 1.7" |
| March | 33°F | 56°F | 43°F | 2.9" |
| April | 42°F | 68°F | 55°F | 3.7" |
| May | 51°F | 76°F | 63°F | 4.5" |
| June | 60°F | 84°F | 72°F | 3.9" |
| July | 64°F | 88°F | 76°F | 3.3" |
| August | 62°F | 86°F | 74°F | 3.1" |
| September | 56°F | 80°F | 67°F | 3.3" |
| October | 45°F | 68°F | 56°F | 4.2" |
| November | 35°F | 57°F | 45°F | 2.4" |
| December | 28°F | 47°F | 37°F | 3.2" |
| Index | Boyce | Virginia | National |
| Air quality index | 38 | 58 | 42 |
| Pollution index | 909,202 | 1,561,881 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 333 |
| Days with moderate air quality | 32 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.060% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.020% |
| Mercury | 0.001% |
| City | Population | Air Quality Index | National Avg. |
| Skyland Estates, VA | 941 | 38 | 24.0% |
| Shenandoah Farms, VA | 3,729 | 38 | 24.0% |
| Charles Town, WV | 5,985 | 38 | 24.0% |
| Apple Mountain Lake, VA | 1,345 | 38 | 24.0% |
| Berryville, VA | 4,338 | 38 | 24.0% |
| Boyce, VA | 867 | 38 | 24.0% |
| City | Population | Air Quality Index | National Avg. |
| Oak Grove, AL | 867 | 38 | 24.0% |
| Many Farms, AZ | 867 | 17 | 66.0% |
| Dorris, CA | 867 | 29 | 42.0% |
| Farmersville, IL | 867 | 40 | 20.0% |
| Lake Santee, IN | 867 | 28 | 44.0% |
| Boyce, VA | 867 | 38 | 24.0% |
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