| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 44°F | 58°F | 51°F | 3.2" |
| February | 46°F | 62°F | 53°F | 3.4" |
| March | 47°F | 64°F | 54°F | 2.7" |
| April | 49°F | 67°F | 56°F | 1.7" |
| May | 51°F | 69°F | 58°F | 0.3" |
| June | 54°F | 72°F | 61°F | 0.2" |
| July | 56°F | 73°F | 62°F | 0.0" |
| August | 56°F | 73°F | 62°F | 0.0" |
| September | 56°F | 76°F | 63°F | 0.1" |
| October | 54°F | 73°F | 62°F | 1.0" |
| November | 49°F | 65°F | 56°F | 1.7" |
| December | 44°F | 58°F | 51°F | 4.4" |
| Index | Broadmoor | California | National |
| Air quality index | 43 | 55 | 42 |
| Pollution index | 8,232,360 | 10,473,190 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 252 |
| Days with moderate air quality | 101 |
| Days w/ poor A.Q. for sensitive groups | 10 |
| Days with unhealthy air quality | 2 |
| Pollutant | Total |
| Arsenic | 0.010% |
| Benzene | 0.060% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.010% |
| Mercury | 0.010% |
| City | Population | Air Quality Index | National Avg. |
| Emeryville, CA | 11,679 | 40 | 20.0% |
| Alto, CA | 818 | 40 | 20.0% |
| Muir Beach, CA | 360 | 40 | 20.0% |
| Strawberry CDP (Tuolumne County), CA | 116 | 40 | 20.0% |
| Berkeley, CA | 123,065 | 40 | 20.0% |
| Broadmoor, CA | 4,140 | 43 | 14.0% |
| City | Population | Air Quality Index | National Avg. |
| Lincoln, ND | 4,140 | 36 | 28.0% |
| Farmington, NH | 4,140 | 31 | 38.0% |
| Waverly, NY | 4,140 | 36 | 28.0% |
| La Paloma, TX | 4,140 | 44 | 12.0% |
| Kitimat-Stikine E, BC | 4,140 | n/a | |
| Broadmoor, CA | 4,140 | 43 | 14.0% |
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