Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 37°F | 45°F | 41°F | 3.1" |
February | 39°F | 47°F | 43°F | 2.8" |
March | 42°F | 52°F | 46°F | 2.3" |
April | 44°F | 55°F | 49°F | 1.2" |
May | 47°F | 60°F | 53°F | 1.1" |
June | 50°F | 64°F | 56°F | 1.0" |
July | 53°F | 66°F | 58°F | 0.7" |
August | 52°F | 68°F | 59°F | 2.2" |
September | 49°F | 63°F | 55°F | 1.7" |
October | 46°F | 57°F | 51°F | 4.7" |
November | 42°F | 51°F | 46°F | 5.8" |
December | 37°F | 45°F | 41°F | 4.7" |
Index | Sequim | Washington | National |
Air quality index | 34 | 36 | 42 |
Pollution index | 1,626,160 | 4,541,850 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 341 |
Days with moderate air quality | 24 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.005% |
Benzene | 0.020% |
Carbon Tetrachloride | 0.002% |
Lead | 0.020% |
Mercury | 0.001% |
City | Population | Air Quality Index | National Avg. |
Port Townsend, WA | 9,710 | 24 | 52.0% |
Port Hadlock-Irondale, WA | 3,329 | 34 | 32.0% |
Carlsborg, WA | 881 | 34 | 32.0% |
Jamestown, WA | 322 | 34 | 32.0% |
Bell Hill, WA | 762 | 34 | 32.0% |
Sequim, WA | 7,441 | 34 | 32.0% |
City | Population | Air Quality Index | National Avg. |
Georgetown, DE | 7,436 | 36 | 28.0% |
Scappoose, OR | 7,436 | 38 | 24.0% |
Ellwood City, PA | 7,436 | 31 | 38.0% |
Whitinsville, MA | 7,435 | 40 | 20.0% |
Clarkston, WA | 7,435 | 29 | 42.0% |
Sequim, WA | 7,441 | 34 | 32.0% |