| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 37°F | 67°F | 51°F | 2.5" |
| February | 38°F | 68°F | 52°F | 1.6" |
| March | 40°F | 73°F | 56°F | 1.1" |
| April | 44°F | 77°F | 59°F | 0.8" |
| May | 50°F | 81°F | 64°F | 0.3" |
| June | 55°F | 90°F | 72°F | 0.0" |
| July | 62°F | 95°F | 77°F | 0.3" |
| August | 61°F | 95°F | 77°F | 0.7" |
| September | 58°F | 93°F | 74°F | 0.2" |
| October | 50°F | 83°F | 65°F | 0.3" |
| November | 41°F | 75°F | 57°F | 0.7" |
| December | 36°F | 66°F | 50°F | 2.9" |
| Index | Big Bear Lake | California | National |
| Air quality index | 89 | 55 | 42 |
| Pollution index | 31,575,300 | 10,473,190 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 42 |
| Days with moderate air quality | 178 |
| Days w/ poor A.Q. for sensitive groups | 79 |
| Days with unhealthy air quality | 58 |
| Pollutant | Total |
| Arsenic | 0.110% |
| Benzene | 0.260% |
| Carbon Tetrachloride | 0.020% |
| Lead | 0.350% |
| Mercury | 0.280% |
| City | Population | Air Quality Index | National Avg. |
| Oak Glen, CA | 307 | 89 | 78.0% |
| Big Bear City, CA | 12,621 | 89 | 78.0% |
| Yucaipa, CA | 54,358 | 89 | 78.0% |
| Lucerne Valley, CA | 5,694 | 89 | 78.0% |
| Running Springs, CA | 4,410 | 89 | 78.0% |
| Big Bear Lake, CA | 5,302 | 89 | 78.0% |
| City | Population | Air Quality Index | National Avg. |
| New Castle, DE | 5,302 | 51 | 2.0% |
| Aberdeen, MS | 5,302 | 39 | 22.0% |
| Yosemite Lakes, CA | 5,303 | 50 | = 100 |
| Moab, UT | 5,303 | 44 | 12.0% |
| Boulder Creek, CA | 5,305 | 35 | 30.0% |
| Big Bear Lake, CA | 5,302 | 89 | 78.0% |
Here are the best places to live in California
Check out the 10 safest cities in California
These are the 10 cheapest cities in California
Check out the 10 most dangerous cities in California