Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 32°F | 48°F | 40°F | 4.7" |
February | 33°F | 53°F | 42°F | 3.9" |
March | 40°F | 60°F | 50°F | 5.0" |
April | 43°F | 62°F | 52°F | 3.7" |
May | 48°F | 71°F | 59°F | 4.0" |
June | 52°F | 73°F | 62°F | 2.7" |
July | 58°F | 83°F | 70°F | 1.3" |
August | 56°F | 84°F | 68°F | 6.4" |
September | 49°F | 75°F | 62°F | 0.9" |
October | 47°F | 64°F | 54°F | 4.5" |
November | 36°F | 53°F | 44°F | 7.9" |
December | 35°F | 46°F | 40°F | 10.3" |
Index | Five Corners | Washington | National |
Air quality index | 38 | 36 | 42 |
Pollution index | 1,899,410 | 4,541,850 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 285 |
Days with moderate air quality | 77 |
Days w/ poor A.Q. for sensitive groups | 3 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.003% |
Benzene | 0.020% |
Carbon Tetrachloride | 0.010% |
Lead | 0.010% |
Mercury | 0.002% |
City | Population | Air Quality Index | National Avg. |
St. Helens, OR | 13,779 | 18 | 64.0% |
Columbia City, OR | 1,770 | 18 | 64.0% |
Maywood Park, OR | 1,224 | 38 | 24.0% |
Brush Prairie, WA | 2,721 | 38 | 24.0% |
Lewisville, WA | 2,166 | 38 | 24.0% |
Five Corners, WA | 19,415 | 38 | 24.0% |
City | Population | Air Quality Index | National Avg. |
Durango, CO | 19,413 | 44 | 12.0% |
Monroe, WA | 19,403 | 45 | 10.0% |
Fairwood, WA | 19,400 | 45 | 10.0% |
Five Forks, SC | 19,399 | 46 | 8.0% |
Montrose, CO | 19,396 | 44 | 12.0% |
Five Corners, WA | 19,415 | 38 | 24.0% |