Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 21°F | 33°F | 26°F | 1.9" |
February | 27°F | 42°F | 33°F | 1.7" |
March | 33°F | 52°F | 41°F | 2.8" |
April | 37°F | 58°F | 46°F | 1.7" |
May | 45°F | 68°F | 56°F | 3.6" |
June | 49°F | 73°F | 60°F | 4.6" |
July | 58°F | 87°F | 72°F | 2.3" |
August | 54°F | 84°F | 68°F | 5.4" |
September | 45°F | 72°F | 58°F | 1.1" |
October | 38°F | 58°F | 46°F | 2.6" |
November | 28°F | 41°F | 34°F | 2.2" |
December | 21°F | 31°F | 26°F | 4.5" |
Index | Fairchild AFB | Washington | National |
Air quality index | 43 | 36 | 42 |
Pollution index | 2,233,350 | 4,541,850 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 252 |
Days with moderate air quality | 111 |
Days w/ poor A.Q. for sensitive groups | 2 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.002% |
Benzene | 0.030% |
Carbon Tetrachloride | 0.002% |
Lead | 0.003% |
Mercury | 0.001% |
City | Population | Air Quality Index | National Avg. |
Four Lakes, WA | 515 | 43 | 14.0% |
Spangle, WA | 231 | 43 | 14.0% |
Reardan, WA | 471 | 43 | 14.0% |
Medical Lake, WA | 4,950 | 43 | 14.0% |
Spokane, WA | 219,185 | 43 | 14.0% |
Fairchild AFB, WA | 3,464 | 43 | 14.0% |
City | Population | Air Quality Index | National Avg. |
Riverton, IL | 3,464 | 40 | 20.0% |
Marietta-Alderwood, WA | 3,463 | 34 | 32.0% |
Union Springs, AL | 3,465 | 52 | 4.0% |
Poteet, TX | 3,462 | 49 | 2.0% |
Feather Sound, FL | 3,466 | 43 | 14.0% |
Fairchild AFB, WA | 3,464 | 43 | 14.0% |