Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 30°F | 43°F | 36°F | 2.2" |
February | 32°F | 51°F | 40°F | 1.4" |
March | 36°F | 59°F | 46°F | 1.5" |
April | 41°F | 66°F | 52°F | 0.8" |
May | 48°F | 76°F | 61°F | 1.0" |
June | 55°F | 82°F | 67°F | 0.5" |
July | 60°F | 92°F | 75°F | 0.1" |
August | 59°F | 91°F | 75°F | 0.2" |
September | 52°F | 83°F | 66°F | 0.4" |
October | 43°F | 67°F | 54°F | 1.3" |
November | 35°F | 53°F | 43°F | 2.1" |
December | 29°F | 42°F | 35°F | 3.1" |
Index | Centerville | Washington | National |
Air quality index | 23 | 36 | 42 |
Pollution index | 1,258,680 | 4,541,850 | 2,726,193 |
Measurement | Total |
Days measured | 350 |
Days with good air quality | 298 |
Days with moderate air quality | 52 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.000% |
Benzene | 0.020% |
Carbon Tetrachloride | 0.001% |
Lead | 0.010% |
Mercury | 0.000% |
City | Population | Air Quality Index | National Avg. |
Klickitat, WA | 262 | 23 | 54.0% |
Wasco, OR | 453 | 23 | 54.0% |
Maryhill, WA | 44 | 23 | 54.0% |
The Dalles, OR | 15,518 | 23 | 54.0% |
Wishram, WA | 537 | 23 | 54.0% |
Centerville, WA | 118 | 23 | 54.0% |
City | Population | Air Quality Index | National Avg. |
Chalkyitsik, AK | 118 | 38 | 24.0% |
Delta, AL | 118 | 38 | 24.0% |
Reed, AR | 118 | 43 | 14.0% |
Katherine, AZ | 118 | 13 | 74.0% |
Montgomery Creek, CA | 118 | 42 | 16.0% |
Centerville, WA | 118 | 23 | 54.0% |