| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 36°F | 48°F | 41°F | 4.7" |
| February | 37°F | 51°F | 44°F | 3.2" |
| March | 40°F | 55°F | 46°F | 4.5" |
| April | 43°F | 61°F | 50°F | 2.9" |
| May | 48°F | 68°F | 57°F | 2.1" |
| June | 53°F | 73°F | 62°F | 1.6" |
| July | 58°F | 80°F | 67°F | 0.5" |
| August | 58°F | 80°F | 67°F | 0.9" |
| September | 53°F | 73°F | 62°F | 1.8" |
| October | 47°F | 62°F | 53°F | 3.9" |
| November | 40°F | 53°F | 46°F | 5.7" |
| December | 36°F | 47°F | 41°F | 4.5" |
| Index | Fairwood CDP (Spokane County) | Washington | National |
| Air quality index | 45 | 36 | 42 |
| Pollution index | 1,081,430 | 4,541,850 | 2,726,193 |
| 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 | 0.000% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Tacoma, WA | 215,766 | 18 | 64.0% |
| Browns Point, WA | 961 | 18 | 64.0% |
| Dash Point, WA | 1,008 | 18 | 64.0% |
| Auburn, WA | 80,914 | 45 | 10.0% |
| Kent, WA | 130,038 | 45 | 10.0% |
| Fairwood CDP (Spokane County), WA | 8,055 | 45 | 10.0% |
| City | Population | Air Quality Index | National Avg. |
| Hempstead, TX | 8,056 | 52 | 4.0% |
| Kings, Subd. C, NS | 8,052 | n/a | |
| Crete, IL | 8,058 | 55 | 10.0% |
| London, KY | 8,058 | 40 | 20.0% |
| Happy Valley-Goose Bay, NL | 8,051 | n/a | |
| Fairwood CDP (Spokane County), WA | 8,055 | 45 | 10.0% |
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