Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 36°F | 46°F | 41°F | 2.9" |
February | 35°F | 49°F | 41°F | 1.9" |
March | 38°F | 52°F | 45°F | 2.3" |
April | 41°F | 55°F | 47°F | 2.0" |
May | 46°F | 60°F | 52°F | 1.8" |
June | 50°F | 63°F | 55°F | 1.8" |
July | 53°F | 68°F | 59°F | 0.7" |
August | 53°F | 68°F | 59°F | 1.5" |
September | 49°F | 65°F | 56°F | 1.4" |
October | 45°F | 58°F | 51°F | 1.8" |
November | 40°F | 51°F | 45°F | 3.5" |
December | 35°F | 46°F | 40°F | 2.2" |
Index | Coupeville | Washington | National |
Air quality index | 24 | 36 | 42 |
Pollution index | 1,626,160 | 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 | 0.005% |
Benzene | 0.020% |
Carbon Tetrachloride | 0.002% |
Lead | 0.020% |
Mercury | 0.001% |
City | Population | Air Quality Index | National Avg. |
Marrowstone, WA | 943 | 24 | 52.0% |
Whidbey Island Station, WA | 2,375 | 24 | 52.0% |
La Conner, WA | 974 | 24 | 52.0% |
Oak Harbor, WA | 23,358 | 24 | 52.0% |
Camano, WA | 17,073 | 24 | 52.0% |
Coupeville, WA | 1,850 | 24 | 52.0% |
City | Population | Air Quality Index | National Avg. |
Bridgton, ME | 1,850 | 31 | 38.0% |
Pumpkin Center, NC | 1,850 | 37 | 26.0% |
Parkersburg, IA | 1,849 | 39 | 22.0% |
Prague, OK | 1,851 | 36 | 28.0% |
Ridgeville, SC | 1,849 | 29 | 42.0% |
Coupeville, WA | 1,850 | 24 | 52.0% |