| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 47°F | 66°F | 56°F | 16.6" |
| February | 50°F | 67°F | 57°F | 13.7" |
| March | 52°F | 67°F | 59°F | 4.3" |
| April | 52°F | 67°F | 59°F | 3.4" |
| May | 57°F | 71°F | 63°F | 1.4" |
| June | 59°F | 71°F | 65°F | 0.0" |
| July | 63°F | 75°F | 68°F | 0.0" |
| August | 63°F | 76°F | 69°F | 0.0" |
| September | 59°F | 75°F | 66°F | 3.4" |
| October | 56°F | 74°F | 64°F | 2.9" |
| November | 53°F | 71°F | 61°F | 1.2" |
| December | 48°F | 66°F | 56°F | 2.7" |
| Index | Westside | California | National |
| Air quality index | 72 | 55 | 42 |
| Pollution index | 4,251,410 | 10,473,190 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 66 |
| Days with moderate air quality | 208 |
| Days w/ poor A.Q. for sensitive groups | 62 |
| Days with unhealthy air quality | 28 |
| Pollutant | Total |
| Arsenic | 0.010% |
| Benzene | 0.100% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.010% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Florence-Graham, CA | 64,787 | 72 | 44.0% |
| Los Angeles, CA | 3,973,278 | 72 | 44.0% |
| Willowbrook, CA | 24,401 | 72 | 44.0% |
| Lynwood, CA | 69,625 | 72 | 44.0% |
| Bell Canyon, CA | 1,991 | 72 | 44.0% |
| Westside, CA | 213 | 72 | 44.0% |
| City | Population | Air Quality Index | National Avg. |
| Nanwalek, AK | 213 | 31 | 38.0% |
| Sweet Water, AL | 213 | 36 | 28.0% |
| Ruth, CA | 213 | 42 | 16.0% |
| Rye, CO | 213 | 20 | 60.0% |
| Sunny Side, GA | 213 | 52 | 4.0% |
| Westside, CA | 213 | 72 | 44.0% |
Here are the best places to live in California
Top 10 cities in California with the best education system
Check out the 10 safest cities in California
These are the 10 most affordable cities in California