Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 36°F | 48°F | 41°F | 4.7" |
February | 37°F | 51°F | 44°F | 3.2" |
March | 40°F | 55°F | 46°F | 4.5" |
April | 43°F | 61°F | 50°F | 2.9" |
May | 48°F | 68°F | 57°F | 2.1" |
June | 53°F | 73°F | 62°F | 1.6" |
July | 58°F | 80°F | 67°F | 0.5" |
August | 58°F | 80°F | 67°F | 0.9" |
September | 53°F | 73°F | 62°F | 1.8" |
October | 47°F | 62°F | 53°F | 3.9" |
November | 40°F | 53°F | 46°F | 5.7" |
December | 36°F | 47°F | 41°F | 4.5" |
Index | Black Diamond | Washington | National |
Air quality index | 45 | 36 | 42 |
Pollution index | 17,693,800 | 4,541,850 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 236 |
Days with moderate air quality | 127 |
Days w/ poor A.Q. for sensitive groups | 2 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.010% |
Benzene | 0.300% |
Carbon Tetrachloride | 0.050% |
Lead | 0.110% |
Mercury | 0.020% |
City | Population | Air Quality Index | National Avg. |
Puyallup, WA | 41,666 | 30 | 40.0% |
McMillin, WA | 1,236 | 30 | 40.0% |
South Hill, WA | 64,104 | 30 | 40.0% |
Auburn, WA | 80,914 | 45 | 10.0% |
Kent, WA | 130,038 | 45 | 10.0% |
Black Diamond, WA | 4,703 | 45 | 10.0% |
City | Population | Air Quality Index | National Avg. |
Baxley, GA | 4,703 | 26 | 48.0% |
Mountain Grove, MO | 4,703 | 39 | 22.0% |
North Braddock, PA | 4,703 | 56 | 12.0% |
Hyde Park, UT | 4,703 | 44 | 12.0% |
Vandercook Lake, MI | 4,702 | 39 | 22.0% |
Black Diamond, WA | 4,703 | 45 | 10.0% |