| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 36°F | 46°F | 41°F | 3.8" |
| February | 37°F | 49°F | 42°F | 2.7" |
| March | 39°F | 52°F | 45°F | 4.4" |
| April | 42°F | 57°F | 48°F | 2.8" |
| May | 47°F | 64°F | 54°F | 2.2" |
| June | 51°F | 68°F | 58°F | 1.8" |
| July | 55°F | 74°F | 63°F | 0.7" |
| August | 56°F | 75°F | 63°F | 0.9" |
| September | 53°F | 69°F | 59°F | 2.0" |
| October | 47°F | 59°F | 52°F | 3.6" |
| November | 40°F | 51°F | 45°F | 5.7" |
| December | 35°F | 44°F | 39°F | 4.9" |
| Index | Bayside | Everett | Washington |
| Air quality index | 45 | 45 | 36 |
| Pollution index | 15,778,900 | 43,367,400 | 4,541,850 |
| 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. |
| Canyon Creek, WA | 3,218 | 24 | 52.0% |
| Sisco Heights, WA | 3,041 | 24 | 52.0% |
| Lake Bosworth, WA | 1,071 | 24 | 52.0% |
| North Marysville, WA | 138 | 24 | 52.0% |
| Kayak Point, WA | 1,500 | 24 | 52.0% |
| Everett, WA | 110,840 | 45 | 10.0% |
| City | Population | Air Quality Index | National Avg. |
| Miami Gardens, FL | 110,767 | 41 | 18.0% |
| West Palm Beach, FL | 111,006 | 36 | 28.0% |
| Pompano Beach, FL | 111,202 | 41 | 18.0% |
| Gresham, OR | 110,456 | 38 | 24.0% |
| Downey, CA | 111,263 | 72 | 44.0% |
| Everett, WA | 110,840 | 45 | 10.0% |
Here are the best places to live in Washington
Safest Cities In The US
These are the 10 cheapest cities in Washington
Check out the 10 most dangerous cities in Washington