Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 32°F | 47°F | 39°F | 7.3" |
February | 32°F | 51°F | 41°F | 4.8" |
March | 35°F | 55°F | 44°F | 7.0" |
April | 36°F | 61°F | 48°F | 3.5" |
May | 42°F | 68°F | 55°F | 2.7" |
June | 47°F | 73°F | 59°F | 1.5" |
July | 50°F | 80°F | 64°F | 0.6" |
August | 50°F | 81°F | 64°F | 1.0" |
September | 46°F | 74°F | 59°F | 2.5" |
October | 41°F | 62°F | 51°F | 5.5" |
November | 35°F | 52°F | 44°F | 9.7" |
December | 31°F | 46°F | 38°F | 8.0" |
Index | Goldcrest | Olympia | Washington |
Air quality index | 30 | 30 | 36 |
Pollution index | 6,704,330 | 6,704,330 | 8,596,989 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 323 |
Days with moderate air quality | 42 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.003% |
Benzene | 0.100% |
Carbon Tetrachloride | 0.004% |
Lead | 0.030% |
Mercury | 0.003% |
City, State | Population | Air Quality Index | National Avg. |
Tenino, WA | 1,744 | 20 | 60% |
Home, WA | 1,531 | 21 | 58% |
Shelton, WA | 9,832 | 21 | 58% |
Herron Island, WA | 67 | 21 | 58% |
Anderson Island, WA | 1,150 | 30 | 40% |
Olympia, WA | 49,608 | 30 | 40% |
City, State | Population | Air Quality Index | National Avg. |
Wilson, NC | 49,558 | 36 | 28% |
Downers Grove, IL | 49,555 | 55 | 10% |
Poway, CA | 49,675 | 64 | 28% |
Logan, UT | 49,539 | 44 | 12% |
Ashburn, VA | 49,692 | 47 | 6% |
Olympia, WA | 49,608 | 30 | 40% |