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 | Alameda | California | National |
Air quality index | 40 | 55 | 50 |
Pollution index | 19,202,400 | 10,473,190 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 290 |
Days with moderate air quality | 74 |
Days w/ poor A.Q. for sensitive groups | 1 |
Days with unhealthy air quality | 0 |
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. |
Pleasant Hill, CA | 34,395 | 40 | 20% |
Saranap, CA | 6,211 | 40 | 20% |
Moraga, CA | 16,977 | 40 | 20% |
Colma, CA | 1,540 | 40 | 20% |
Corte Madera, CA | 9,694 | 40 | 20% |
Alameda, CA | 77,409 | 40 | 20% |
City, State | Population | Air Quality Index | National Avg. |
Chino Hills, CA | 77,266 | 89 | 78% |
Bellflower, CA | 77,687 | 72 | 44% |
Pleasanton, CA | 77,046 | 43 | 14% |
Gary, IN | 77,858 | 55 | 10% |
Mount Pleasant, SC | 77,907 | 38 | 24% |
Alameda, CA | 77,409 | 40 | 20% |