Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 27°F | 42°F | 34°F | 1.0" |
February | 29°F | 51°F | 38°F | 0.6" |
March | 34°F | 61°F | 47°F | 0.8" |
April | 38°F | 68°F | 53°F | 0.6" |
May | 45°F | 79°F | 62°F | 0.9" |
June | 53°F | 85°F | 69°F | 0.8" |
July | 58°F | 95°F | 77°F | 0.2" |
August | 56°F | 93°F | 74°F | 0.2" |
September | 47°F | 83°F | 64°F | 0.3" |
October | 40°F | 67°F | 52°F | 0.8" |
November | 32°F | 52°F | 41°F | 0.8" |
December | 25°F | 41°F | 32°F | 1.1" |
Index | West Richland | Washington | National |
Air quality index | 37 | 36 | 42 |
Pollution index | 697,942 | 4,541,850 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 303 |
Days with moderate air quality | 62 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.020% |
Benzene | 0.004% |
Carbon Tetrachloride | 0.001% |
Lead | 0.010% |
Mercury | 0.010% |
City | Population | Air Quality Index | National Avg. |
Benton City, WA | 3,422 | 37 | 26.0% |
Kennewick, WA | 82,633 | 37 | 26.0% |
Pasco, WA | 74,266 | 37 | 26.0% |
Richland, WA | 57,353 | 37 | 26.0% |
West Pasco, WA | 1,592 | 37 | 26.0% |
West Richland, WA | 14,842 | 37 | 26.0% |
City | Population | Air Quality Index | National Avg. |
Glen Allen, VA | 14,842 | 44 | 12.0% |
Natchez, MS | 14,854 | 30 | 40.0% |
Oldsmar, FL | 14,824 | 43 | 14.0% |
Kilgore, TX | 14,824 | 37 | 26.0% |
Gaspé, QC | 14,815 | n/a | |
West Richland, WA | 14,842 | 37 | 26.0% |