| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 33°F | 47°F | 39°F | 7.4" |
| February | 33°F | 51°F | 41°F | 4.9" |
| March | 36°F | 55°F | 44°F | 6.1" |
| April | 38°F | 60°F | 48°F | 4.0" |
| May | 44°F | 67°F | 55°F | 4.5" |
| June | 49°F | 72°F | 60°F | 3.0" |
| July | 52°F | 80°F | 65°F | 1.5" |
| August | 52°F | 80°F | 65°F | 3.4" |
| September | 48°F | 73°F | 60°F | 4.4" |
| October | 42°F | 62°F | 51°F | 6.3" |
| November | 36°F | 52°F | 44°F | 8.2" |
| December | 32°F | 46°F | 38°F | 6.9" |
| Index | Buckley | Washington | National |
| Air quality index | 45 | 36 | 42 |
| Pollution index | 17,693,800 | 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 | 0.010% |
| Benzene | 0.300% |
| Carbon Tetrachloride | 0.050% |
| Lead | 0.110% |
| Mercury | 0.020% |
| City | Population | Air Quality Index | National Avg. |
| Graham, WA | 32,505 | 30 | 40.0% |
| McMillin, WA | 1,236 | 30 | 40.0% |
| Puyallup, WA | 41,666 | 30 | 40.0% |
| Orting, WA | 8,267 | 30 | 40.0% |
| Crocker, WA | 1,322 | 30 | 40.0% |
| Buckley, WA | 4,960 | 45 | 10.0% |
| City | Population | Air Quality Index | National Avg. |
| Needles, CA | 4,959 | 13 | 74.0% |
| Perry, OK | 4,959 | 40 | 20.0% |
| Prospect, KY | 4,961 | 49 | 2.0% |
| Barling, AR | 4,957 | 36 | 28.0% |
| South Barrington, IL | 4,963 | 55 | 10.0% |
| Buckley, WA | 4,960 | 45 | 10.0% |
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