Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 35°F | 45°F | 40°F | 2.5" |
February | 36°F | 50°F | 42°F | 2.8" |
March | 41°F | 55°F | 47°F | 3.5" |
April | 43°F | 58°F | 49°F | 3.5" |
May | 48°F | 65°F | 55°F | 3.0" |
June | 51°F | 66°F | 57°F | 2.2" |
July | 55°F | 74°F | 63°F | 2.0" |
August | 55°F | 74°F | 62°F | 1.7" |
September | 50°F | 66°F | 57°F | 2.8" |
October | 46°F | 59°F | 51°F | 3.4" |
November | 38°F | 48°F | 43°F | 4.8" |
December | 35°F | 45°F | 39°F | 8.6" |
Index | Mountlake Terrace | Washington | National |
Air quality index | 45 | 36 | 42 |
Pollution index | 43,367,400 | 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 | 0.020% |
Benzene | 0.790% |
Carbon Tetrachloride | 0.120% |
Lead | 0.210% |
Mercury | 0.180% |
City | Population | Air Quality Index | National Avg. |
Keyport, WA | 339 | 18 | 64.0% |
Enetai, WA | 1,993 | 18 | 64.0% |
Kirkland, WA | 91,146 | 45 | 10.0% |
Cottage Lake, WA | 23,239 | 45 | 10.0% |
Lynnwood, WA | 38,538 | 45 | 10.0% |
Mountlake Terrace, WA | 21,328 | 45 | 10.0% |
City | Population | Air Quality Index | National Avg. |
La Porte, IN | 21,328 | 37 | 26.0% |
Montclair, VA | 21,329 | 47 | 6.0% |
Cartersville, GA | 21,331 | 44 | 12.0% |
Selden, NY | 21,338 | 43 | 14.0% |
Bellview, FL | 21,314 | 41 | 18.0% |
Mountlake Terrace, WA | 21,328 | 45 | 10.0% |