Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 36°F | 58°F | 47°F | 3.8" |
February | 39°F | 62°F | 50°F | 3.4" |
March | 41°F | 66°F | 52°F | 3.0" |
April | 42°F | 69°F | 55°F | 1.6" |
May | 46°F | 74°F | 59°F | 0.5" |
June | 50°F | 80°F | 64°F | 0.3" |
July | 53°F | 81°F | 65°F | 0.0" |
August | 53°F | 80°F | 64°F | 0.0" |
September | 49°F | 82°F | 64°F | 0.1" |
October | 45°F | 76°F | 59°F | 1.3" |
November | 40°F | 66°F | 52°F | 1.8" |
December | 36°F | 58°F | 47°F | 3.8" |
Index | Oakville | California | National |
Air quality index | 35 | 55 | 42 |
Pollution index | 7,898,290 | 10,473,190 | 2,726,193 |
Measurement | Total |
Days measured | 363 |
Days with good air quality | 330 |
Days with moderate air quality | 31 |
Days w/ poor A.Q. for sensitive groups | 2 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.260% |
Benzene | 0.080% |
Carbon Tetrachloride | 0.005% |
Lead | 0.240% |
Mercury | 0.270% |
City | Population | Air Quality Index | National Avg. |
Angwin, CA | 3,415 | 34 | 32.0% |
Kenwood, CA | 540 | 34 | 32.0% |
St. Helena, CA | 6,049 | 34 | 32.0% |
Penngrove, CA | 2,368 | 34 | 32.0% |
Calistoga, CA | 5,346 | 34 | 32.0% |
Oakville, CA | 74 | 35 | 30.0% |
City | Population | Air Quality Index | National Avg. |
Port Alexander, AK | 74 | 20 | 60.0% |
Willow Creek, AK | 74 | 31 | 38.0% |
Woodruff, AZ | 74 | 44 | 12.0% |
Hornitos, CA | 74 | 48 | 4.0% |
Blairstown, MO | 74 | 47 | 6.0% |
Oakville, CA | 74 | 35 | 30.0% |