Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 35°F | 45°F | 40°F | 1.2" |
February | 37°F | 48°F | 41°F | 2.3" |
March | 40°F | 51°F | 45°F | 2.5" |
April | 42°F | 56°F | 48°F | 0.6" |
May | 46°F | 61°F | 53°F | 1.2" |
June | 50°F | 66°F | 57°F | 0.9" |
July | 52°F | 71°F | 60°F | 0.0" |
August | 52°F | 71°F | 61°F | 0.0" |
September | 50°F | 66°F | 57°F | 0.5" |
October | 45°F | 57°F | 51°F | 2.9" |
November | 40°F | 50°F | 44°F | 2.4" |
December | 35°F | 44°F | 39°F | 1.4" |
Index | Sedro-Woolley | Washington | National |
Air quality index | 24 | 36 | 42 |
Pollution index | 15,778,900 | 4,541,850 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 361 |
Days with moderate air quality | 4 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.010% |
Benzene | 0.270% |
Carbon Tetrachloride | 0.040% |
Lead | 0.160% |
Mercury | 0.003% |
City | Population | Air Quality Index | National Avg. |
Bay View, WA | 666 | 24 | 52.0% |
Lake McMurray, WA | 478 | 24 | 52.0% |
Conway, WA | 40 | 24 | 52.0% |
La Conner, WA | 974 | 24 | 52.0% |
Lyman, WA | 277 | 24 | 52.0% |
Sedro-Woolley, WA | 11,919 | 24 | 52.0% |
City | Population | Air Quality Index | National Avg. |
Myrtle Grove, NC | 11,921 | 34 | 32.0% |
Rossmoor, CA | 11,923 | 72 | 44.0% |
Healdsburg, CA | 11,924 | 34 | 32.0% |
Lake Los Angeles, CA | 11,926 | 72 | 44.0% |
Clawson, MI | 11,909 | 56 | 12.0% |
Sedro-Woolley, WA | 11,919 | 24 | 52.0% |