Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 28°F | 49°F | 38°F | 6.6" |
February | 29°F | 52°F | 40°F | 4.8" |
March | 36°F | 61°F | 48°F | 6.3" |
April | 46°F | 72°F | 59°F | 6.8" |
May | 55°F | 79°F | 66°F | 7.2" |
June | 64°F | 87°F | 75°F | 8.1" |
July | 68°F | 90°F | 78°F | 6.8" |
August | 66°F | 88°F | 77°F | 7.1" |
September | 60°F | 82°F | 70°F | 6.7" |
October | 49°F | 72°F | 59°F | 8.4" |
November | 38°F | 62°F | 49°F | 8.3" |
December | 32°F | 53°F | 42°F | 8.0" |
Index | Dumbarton | Virginia | National |
Air quality index | 44 | 58 | 42 |
Pollution index | 5,336,070 | 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 | 0.200% |
Benzene | 0.050% |
Carbon Tetrachloride | 0.010% |
Lead | 0.050% |
Mercury | 0.010% |
City | Population | Air Quality Index | National Avg. |
Montrose, VA | 7,639 | 44 | 12.0% |
Tuckahoe, VA | 48,517 | 44 | 12.0% |
Bellwood, VA | 7,808 | 44 | 12.0% |
Glen Allen, VA | 14,842 | 44 | 12.0% |
Manchester, VA | 11,814 | 44 | 12.0% |
Dumbarton, VA | 8,411 | 44 | 12.0% |
City | Population | Air Quality Index | National Avg. |
Westwego, LA | 8,411 | 45 | 10.0% |
Heber, CA | 8,413 | 58 | 16.0% |
Spring Valley Lake, CA | 8,408 | 89 | 78.0% |
Greenville, MI | 8,407 | 38 | 24.0% |
Hyrum, UT | 8,415 | 44 | 12.0% |
Dumbarton, VA | 8,411 | 44 | 12.0% |