Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 36°F | 51°F | 42°F | 4.6" |
February | 38°F | 56°F | 45°F | 3.7" |
March | 40°F | 60°F | 48°F | 4.4" |
April | 42°F | 65°F | 52°F | 2.5" |
May | 48°F | 74°F | 59°F | 2.0" |
June | 53°F | 79°F | 64°F | 1.0" |
July | 57°F | 88°F | 71°F | 0.3" |
August | 57°F | 89°F | 71°F | 0.2" |
September | 52°F | 83°F | 65°F | 0.9" |
October | 46°F | 69°F | 55°F | 2.8" |
November | 41°F | 56°F | 47°F | 5.0" |
December | 36°F | 49°F | 41°F | 6.3" |
Index | Riddle | Oregon | National |
Air quality index | 24 | 32 | 42 |
Pollution index | 13,842,600 | 7,156,356 | 2,726,193 |
Measurement | Total |
Days measured | 347 |
Days with good air quality | 288 |
Days with moderate air quality | 59 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.020% |
Benzene | 0.210% |
Carbon Tetrachloride | 0.030% |
Lead | 0.030% |
Mercury | 0.020% |
City | Population | Air Quality Index | National Avg. |
Winston, OR | 5,444 | 24 | 52.0% |
Tri-City, OR | 4,449 | 24 | 52.0% |
Dillard, OR | 525 | 24 | 52.0% |
Canyonville, OR | 1,812 | 24 | 52.0% |
Days Creek, OR | 301 | 24 | 52.0% |
Riddle, OR | 1,159 | 24 | 52.0% |
City | Population | Air Quality Index | National Avg. |
Wooster, AR | 1,159 | 45 | 10.0% |
Mariposa, CA | 1,159 | 48 | 4.0% |
Arlington, GA | 1,159 | 40 | 20.0% |
Centreville, MI | 1,159 | 38 | 24.0% |
Lambert, MS | 1,159 | 33 | 34.0% |
Riddle, OR | 1,159 | 24 | 52.0% |