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 | West Falls Church | Virginia | National |
Air quality index | 47 | 58 | 42 |
Pollution index | 208,434 | 1,561,881 | 2,726,193 |
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. |
Chevy Chase Section Five, MD | 757 | 47 | 6.0% |
Forest Glen, MD | 5,957 | 47 | 6.0% |
North Chevy Chase, MD | 555 | 47 | 6.0% |
Mount Vernon, VA | 13,490 | 47 | 6.0% |
Fair Oaks, VA | 34,466 | 47 | 6.0% |
West Falls Church, VA | 31,262 | 47 | 6.0% |
City | Population | Air Quality Index | National Avg. |
Saratoga Springs, UT | 31,273 | 46 | 8.0% |
Sherwood, AR | 31,225 | 45 | 10.0% |
Rochester, NH | 31,305 | 27 | 46.0% |
Grimsby, ON | 31,320 | n/a | |
Naugatuck, CT | 31,201 | 41 | 18.0% |
West Falls Church, VA | 31,262 | 47 | 6.0% |