| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 29°F | 60°F | 43°F | 1.3" |
| February | 33°F | 66°F | 48°F | 0.8" |
| March | 38°F | 72°F | 54°F | 0.5" |
| April | 43°F | 77°F | 60°F | 0.3" |
| May | 51°F | 87°F | 69°F | 0.0" |
| June | 60°F | 97°F | 79°F | 0.0" |
| July | 67°F | 102°F | 85°F | 0.2" |
| August | 64°F | 101°F | 83°F | 0.1" |
| September | 56°F | 95°F | 75°F | 0.1" |
| October | 45°F | 82°F | 62°F | 0.2" |
| November | 35°F | 70°F | 51°F | 0.3" |
| December | 28°F | 58°F | 42°F | 0.8" |
| Index | Boron | California | National |
| Air quality index | 89 | 55 | 42 |
| Pollution index | 21,095,500 | 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 | 1.700% |
| Benzene | 0.350% |
| Carbon Tetrachloride | 0.004% |
| Lead | 0.580% |
| Mercury | 1.550% |
| City | Population | Air Quality Index | National Avg. |
| North Edwards, CA | 906 | 67 | 34.0% |
| Edwards AFB, CA | 2,676 | 72 | 44.0% |
| Boron, CA | 2,280 | 89 | 78.0% |
| City | Population | Air Quality Index | National Avg. |
| East Quincy, CA | 2,279 | 46 | 8.0% |
| Upton, MA | 2,279 | 40 | 20.0% |
| Central Manitoulin, ON | 2,279 | n/a | |
| Granby, CO | 2,281 | 47 | 6.0% |
| Santo Domingo Pueblo, NM | 2,281 | 44 | 12.0% |
| Boron, CA | 2,280 | 89 | 78.0% |
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