| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 24°F | 46°F | 34°F | 2.7" |
| February | 25°F | 48°F | 36°F | 2.1" |
| March | 33°F | 58°F | 45°F | 3.2" |
| April | 43°F | 71°F | 56°F | 3.7" |
| May | 52°F | 78°F | 65°F | 5.6" |
| June | 61°F | 86°F | 74°F | 4.5" |
| July | 66°F | 90°F | 78°F | 4.2" |
| August | 65°F | 88°F | 76°F | 2.8" |
| September | 58°F | 82°F | 69°F | 3.5" |
| October | 46°F | 71°F | 58°F | 5.4" |
| November | 35°F | 59°F | 46°F | 2.6" |
| December | 29°F | 50°F | 39°F | 3.8" |
| Index | Purcellville | 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. |
| Berryville, VA | 4,338 | 38 | 24.0% |
| Charles Town, WV | 5,985 | 38 | 24.0% |
| Woodburn, VA | 10,081 | 38 | 24.0% |
| Hillsboro, VA | 197 | 38 | 24.0% |
| Middleway, WV | 396 | 38 | 24.0% |
| Purcellville, VA | 10,063 | 38 | 24.0% |
| City | Population | Air Quality Index | National Avg. |
| Cedartown, GA | 10,062 | 44 | 12.0% |
| Winterville, NC | 10,062 | 38 | 24.0% |
| Marina del Rey, CA | 10,065 | 72 | 44.0% |
| Bastrop, LA | 10,060 | 34 | 32.0% |
| Kennett, MO | 10,069 | 26 | 48.0% |
| Purcellville, VA | 10,063 | 38 | 24.0% |
Here are the best places to live in Virginia
Check out the 10 safest cities in Virginia
Check out the 10 most dangerous cities in Virginia
Safest Cities In The US