| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 18°F | 39°F | 27°F | 2.9" |
| February | 23°F | 44°F | 32°F | 1.8" |
| March | 27°F | 50°F | 37°F | 1.2" |
| April | 30°F | 58°F | 43°F | 1.6" |
| May | 36°F | 66°F | 51°F | 1.8" |
| June | 43°F | 77°F | 60°F | 1.2" |
| July | 48°F | 88°F | 68°F | 1.1" |
| August | 45°F | 86°F | 66°F | 0.5" |
| September | 38°F | 78°F | 57°F | 1.5" |
| October | 30°F | 64°F | 45°F | 1.0" |
| November | 25°F | 49°F | 35°F | 0.7" |
| December | 18°F | 38°F | 27°F | 2.1" |
| Index | Plush | Oregon | National |
| Air quality index | 29 | 32 | 42 |
| Pollution index | 661,452 | 7,156,356 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 261 |
| Days with moderate air quality | 98 |
| Days w/ poor A.Q. for sensitive groups | 6 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.002% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.020% |
| Mercury | 0.001% |
| City | Population | Air Quality Index | National Avg. |
| Plush, OR | 95 | 29 | 42.0% |
| City | Population | Air Quality Index | National Avg. |
| Oscarville, AK | 95 | 31 | 38.0% |
| Chester, AR | 95 | 36 | 28.0% |
| Bear Creek, CA | 95 | 48 | 4.0% |
| Somers, IA | 95 | 37 | 26.0% |
| Struble, IA | 95 | 35 | 30.0% |
| Plush, OR | 95 | 29 | 42.0% |
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