| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 34°F | 49°F | 41°F | 5.6" |
| February | 35°F | 53°F | 43°F | 4.1" |
| March | 37°F | 58°F | 47°F | 5.4" |
| April | 39°F | 63°F | 50°F | 2.9" |
| May | 45°F | 71°F | 57°F | 2.3" |
| June | 50°F | 76°F | 62°F | 1.3" |
| July | 54°F | 86°F | 69°F | 0.3" |
| August | 54°F | 86°F | 69°F | 0.4" |
| September | 50°F | 80°F | 63°F | 1.8" |
| October | 43°F | 66°F | 54°F | 4.1" |
| November | 38°F | 55°F | 46°F | 6.7" |
| December | 33°F | 48°F | 40°F | 7.4" |
| Index | Scio | Oregon | National |
| Air quality index | 28 | 32 | 42 |
| Pollution index | 3,182,180 | 7,156,356 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 280 |
| Days with moderate air quality | 83 |
| Days w/ poor A.Q. for sensitive groups | 2 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.010% |
| Benzene | 0.040% |
| Carbon Tetrachloride | 0.030% |
| Lead | 0.190% |
| Mercury | 0.110% |
| City | Population | Air Quality Index | National Avg. |
| Albany, OR | 54,442 | 28 | 44.0% |
| Lebanon, OR | 17,144 | 28 | 44.0% |
| South Lebanon, OR | 903 | 28 | 44.0% |
| West Scio, OR | 37 | 28 | 44.0% |
| Jefferson, OR | 3,348 | 28 | 44.0% |
| Scio, OR | 1,012 | 28 | 44.0% |
| City | Population | Air Quality Index | National Avg. |
| Baileyton, AL | 1,012 | 44 | 12.0% |
| Ellicott, CO | 1,012 | 45 | 10.0% |
| Patterson Springs, NC | 1,012 | 36 | 28.0% |
| Weleetka, OK | 1,012 | 43 | 14.0% |
| Concord, VA | 1,012 | 26 | 48.0% |
| Scio, OR | 1,012 | 28 | 44.0% |
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