| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 28°F | 47°F | 37°F | 2.7" |
| February | 29°F | 50°F | 38°F | 2.3" |
| March | 37°F | 60°F | 47°F | 3.2" |
| April | 47°F | 71°F | 58°F | 3.4" |
| May | 56°F | 78°F | 67°F | 4.6" |
| June | 67°F | 87°F | 77°F | 5.3" |
| July | 72°F | 91°F | 81°F | 4.2" |
| August | 70°F | 90°F | 79°F | 3.2" |
| September | 63°F | 83°F | 72°F | 3.5" |
| October | 52°F | 72°F | 61°F | 5.0" |
| November | 40°F | 61°F | 50°F | 2.5" |
| December | 33°F | 52°F | 42°F | 3.8" |
| Index | Buckingham | Arlington | Virginia |
| Air quality index | 47 | 47 | 58 |
| Pollution index | 208,434 | 208,434 | 1,561,881 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 209 |
| Days with moderate air quality | 145 |
| Days w/ poor A.Q. for sensitive groups | 10 |
| Days with unhealthy air quality | 1 |
| Pollutant | Total |
| Arsenic | 0.003% |
| Benzene | 0.002% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.001% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Clifton, VA | 309 | 47 | 6.0% |
| Cascades, VA | 12,132 | 47 | 6.0% |
| Sugarland Run, VA | 12,656 | 47 | 6.0% |
| Walker Mill, MD | 9,725 | 47 | 6.0% |
| Chillum, MD | 34,230 | 47 | 6.0% |
| Arlington, VA | 236,434 | 47 | 6.0% |
| City | Population | Air Quality Index | National Avg. |
| Fremont, CA | 234,829 | 43 | 14.0% |
| Garland, TX | 238,622 | 51 | 2.0% |
| Hialeah, FL | 233,876 | 41 | 18.0% |
| Irving, TX | 240,475 | 51 | 2.0% |
| Regina, SK | 241,465 | n/a | |
| Arlington, VA | 236,434 | 47 | 6.0% |
Here are the best places to live in Virginia
Top 10 best public schools in Arlington
Top 10 cities in Virginia with the best education system
10 best cities to buy a new house in Virginia