| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 36°F | 60°F | 48°F | 2.1" |
| February | 38°F | 66°F | 52°F | 2.9" |
| March | 42°F | 72°F | 56°F | 2.3" |
| April | 46°F | 77°F | 61°F | 3.2" |
| May | 52°F | 83°F | 67°F | 1.0" |
| June | 63°F | 96°F | 80°F | 4.8" |
| July | 66°F | 98°F | 83°F | 1.0" |
| August | 65°F | 98°F | 82°F | 0.9" |
| September | 59°F | 91°F | 75°F | 1.7" |
| October | 50°F | 80°F | 65°F | 3.5" |
| November | 41°F | 69°F | 54°F | 1.0" |
| December | 35°F | 59°F | 46°F | 4.3" |
| Index | Mountain View Acres | California | National |
| Air quality index | 85 | 55 | 50 |
| Pollution index | 31,575,300 | 18,106,726 | 5,066,862 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 24 |
| Days with moderate air quality | 211 |
| Days w/ poor A.Q. for sensitive groups | 102 |
| Days with unhealthy air quality | 25 |
| Pollutant | Total |
| Arsenic | 0.110% |
| Benzene | 0.260% |
| Carbon Tetrachloride | 0.020% |
| Lead | 0.350% |
| Mercury | 0.280% |
| City, State | Population | Air Quality Index | National Avg. |
| Adelanto, CA | 32,311 | 85 | 70% |
| Phelan, CA | 14,503 | 85 | 70% |
| Apple Valley, CA | 71,455 | 85 | 70% |
| Spring Valley Lake, CA | 7,710 | 85 | 70% |
| Hesperia, CA | 92,664 | 85 | 70% |
| Mountain View Acres, CA | 3,583 | 85 | 70% |
| City, State | Population | Air Quality Index | National Avg. |
| Clifton, AZ | 3,583 | 37 | 26% |
| Mission Hills, KS | 3,582 | 58 | 16% |
| South Dennis, MA | 3,582 | 33 | 34% |
| Felton, CA | 3,582 | 36 | 28% |
| Escatawpa, MS | 3,582 | 32 | 36% |
| Mountain View Acres, CA | 3,583 | 85 | 70% |