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 | Wellington West | Olympia | Washington |
Air quality index | 30 | 30 | 36 |
Pollution index | 6,704,330 | 6,704,330 | 4,541,850 |
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 | Population | Air Quality Index | National Avg. |
Oakville, WA | 647 | 20 | 60.0% |
Rochester, WA | 4,854 | 20 | 60.0% |
Tenino, WA | 1,744 | 20 | 60.0% |
Shelton, WA | 10,467 | 21 | 58.0% |
Tanglewilde, WA | 7,033 | 30 | 40.0% |
Olympia, WA | 52,290 | 30 | 40.0% |
City | Population | Air Quality Index | National Avg. |
Stratford, CT | 52,300 | 43 | 14.0% |
Edina, MN | 52,215 | 46 | 8.0% |
Mascouche, QC | 52,212 | n/a | |
Watsonville, CA | 52,398 | 35 | 30.0% |
Queen Creek, AZ | 52,162 | 74 | 48.0% |
Olympia, WA | 52,290 | 30 | 40.0% |