| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 30°F | 60°F | 44°F | 1.6" |
| February | 34°F | 64°F | 48°F | 1.2" |
| March | 40°F | 70°F | 54°F | 0.6" |
| April | 44°F | 76°F | 59°F | 0.3" |
| May | 53°F | 84°F | 68°F | 0.1" |
| June | 62°F | 94°F | 78°F | 0.0" |
| July | 68°F | 100°F | 84°F | 0.2" |
| August | 65°F | 99°F | 83°F | 0.0" |
| September | 56°F | 93°F | 75°F | 0.2" |
| October | 46°F | 81°F | 63°F | 0.4" |
| November | 36°F | 70°F | 52°F | 0.4" |
| December | 30°F | 59°F | 43°F | 1.0" |
| Index | Leona Valley | California | National |
| Air quality index | 72 | 55 | 42 |
| Pollution index | 139,490,000 | 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 | 0.200% |
| Benzene | 0.950% |
| Carbon Tetrachloride | 0.080% |
| Lead | 1.320% |
| Mercury | 0.440% |
| City | Population | Air Quality Index | National Avg. |
| Desert View Highlands, CA | 3,259 | 72 | 44.0% |
| Acton, CA | 7,054 | 72 | 44.0% |
| Santa Clarita, CA | 212,519 | 72 | 44.0% |
| Lancaster, CA | 157,697 | 72 | 44.0% |
| Agua Dulce, CA | 3,494 | 72 | 44.0% |
| Leona Valley, CA | 1,672 | 72 | 44.0% |
| City | Population | Air Quality Index | National Avg. |
| Hillcrest, IL | 1,672 | 42 | 16.0% |
| Waterville, NY | 1,672 | 27 | 46.0% |
| Ashley, OH | 1,672 | 41 | 18.0% |
| Franklin, QC | 1,672 | n/a | |
| Cheswold, DE | 1,673 | 42 | 16.0% |
| Leona Valley, CA | 1,672 | 72 | 44.0% |
Here are the best places to live in California
Most Dangerous Cities In The US
See the best places to live in Leona Valley
Check out the 10 most dangerous cities in California