| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 35°F | 48°F | 40°F | 5.6" |
| February | 37°F | 52°F | 43°F | 4.0" |
| March | 39°F | 57°F | 47°F | 5.4" |
| April | 41°F | 62°F | 51°F | 3.2" |
| May | 47°F | 70°F | 57°F | 2.6" |
| June | 52°F | 76°F | 62°F | 1.4" |
| July | 55°F | 85°F | 69°F | 0.4" |
| August | 55°F | 85°F | 69°F | 0.4" |
| September | 51°F | 79°F | 63°F | 1.7" |
| October | 45°F | 65°F | 54°F | 4.3" |
| November | 40°F | 54°F | 46°F | 6.4" |
| December | 34°F | 47°F | 40°F | 6.1" |
| Index | Hubbard | Oregon | National |
| Air quality index | 32 | 32 | 42 |
| Pollution index | 11,541,100 | 7,156,356 | 2,726,193 |
| Measurement | Total |
| Days measured | 356 |
| Days with good air quality | 302 |
| Days with moderate air quality | 54 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.010% |
| Benzene | 0.140% |
| Carbon Tetrachloride | 0.020% |
| Lead | 0.020% |
| Mercury | 0.010% |
| City | Population | Air Quality Index | National Avg. |
| Donald, OR | 1,465 | 32 | 36.0% |
| Brooks, OR | 621 | 32 | 36.0% |
| Labish Village, OR | 491 | 32 | 36.0% |
| Silverton, OR | 10,426 | 32 | 36.0% |
| Dundee, OR | 3,296 | 32 | 36.0% |
| Hubbard, OR | 3,527 | 32 | 36.0% |
| City | Population | Air Quality Index | National Avg. |
| East Hampton, CT | 3,526 | 41 | 18.0% |
| Slippery Rock, PA | 3,526 | 31 | 38.0% |
| Dahlgren, VA | 3,528 | 47 | 6.0% |
| Studholm, NB | 3,528 | n/a | |
| Princess Anne, MD | 3,525 | 36 | 28.0% |
| Hubbard, OR | 3,527 | 32 | 36.0% |
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