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 | Salem | Oregon | National |
Air quality index | 32 | 32 | 50 |
Pollution index | 3,182,180 | 5,374,527 | 5,066,862 |
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 | 0.040% |
Carbon Tetrachloride | 0.030% |
Lead | 0.190% |
Mercury | 0.110% |
City, State | Population | Air Quality Index | National Avg. |
Marion, OR | 263 | 28 | 44% |
Jefferson, OR | 3,207 | 28 | 44% |
West Scio, OR | 139 | 28 | 44% |
Four Corners, OR | 15,963 | 32 | 36% |
Eola, OR | 0 | 32 | 36% |
Salem, OR | 161,975 | 32 | 36% |
City, State | Population | Air Quality Index | National Avg. |
Eugene, OR | 161,649 | 38 | 24% |
Corona, CA | 161,614 | 89 | 78% |
Elk Grove, CA | 163,634 | 52 | 4% |
Lancaster, CA | 159,651 | 72 | 44% |
Pembroke Pines, FL | 164,753 | 41 | 18% |
Salem, OR | 161,975 | 32 | 36% |