| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 41°F | 59°F | 50°F | 2.8" |
| February | 45°F | 62°F | 53°F | 3.1" |
| March | 47°F | 65°F | 55°F | 2.9" |
| April | 49°F | 67°F | 57°F | 1.8" |
| May | 52°F | 69°F | 59°F | 0.4" |
| June | 54°F | 72°F | 62°F | 0.3" |
| July | 56°F | 73°F | 63°F | 0.0" |
| August | 57°F | 73°F | 63°F | 0.0" |
| September | 55°F | 76°F | 64°F | 0.1" |
| October | 52°F | 73°F | 61°F | 1.0" |
| November | 47°F | 65°F | 56°F | 1.9" |
| December | 42°F | 59°F | 50°F | 4.1" |
| Index | Joaquin Miller Park | Oakland | California |
| Air quality index | 43 | 43 | 55 |
| Pollution index | 19,202,400 | 19,202,400 | 18,106,726 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 241 |
| Days with moderate air quality | 115 |
| Days w/ poor A.Q. for sensitive groups | 9 |
| Days with unhealthy air quality |
| Pollutant | Total |
| Arsenic | 0.180% |
| Benzene | 0.140% |
| Carbon Tetrachloride | 0.010% |
| Lead | 0.280% |
| Mercury | 0.060% |
| City, State | Population | Air Quality Index | National Avg. |
| Alameda, CA | 77,409 | 43 | 14% |
| Ashland, CA | 24,288 | 43 | 14% |
| Camino Tassajara, CA | 3,456 | 43 | 14% |
| Clayton, CA | 11,655 | 43 | 14% |
| Contra Costa Centre, CA | 6,190 | 43 | 14% |
| Oakland, CA | 412,040 | 43 | 14% |
| City, State | Population | Air Quality Index | National Avg. |
| Minneapolis, MN | 404,670 | 44 | 12% |
| Tulsa, OK | 399,906 | 48 | 4% |
| Miami, FL | 432,622 | 41 | 18% |
| Cleveland, OH | 389,165 | 55 | 10% |
| Wichita, KS | 388,033 | 39 | 22% |
| Oakland, CA | 412,040 | 43 | 14% |