| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 40°F | 62°F | 50°F | 2.9" |
| February | 43°F | 63°F | 52°F | 2.9" |
| March | 44°F | 65°F | 53°F | 2.5" |
| April | 45°F | 66°F | 54°F | 1.8" |
| May | 50°F | 68°F | 57°F | 0.5" |
| June | 53°F | 70°F | 60°F | 0.1" |
| July | 55°F | 71°F | 61°F | 0.0" |
| August | 55°F | 72°F | 61°F | 0.1" |
| September | 53°F | 74°F | 61°F | 0.2" |
| October | 49°F | 73°F | 58°F | 0.7" |
| November | 45°F | 69°F | 55°F | 0.9" |
| December | 41°F | 61°F | 49°F | 2.4" |
| Index | Boronda | California | National |
| Air quality index | 37 | 55 | 42 |
| Pollution index | 9,602,130 | 10,473,190 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 330 |
| Days with moderate air quality | 34 |
| Days w/ poor A.Q. for sensitive groups | 1 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.070% |
| Benzene | 0.190% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.080% |
| Mercury | 0.070% |
| City | Population | Air Quality Index | National Avg. |
| Chualar, CA | 1,413 | 37 | 26.0% |
| Gonzales, CA | 8,348 | 37 | 26.0% |
| Pacific Grove, CA | 15,471 | 37 | 26.0% |
| Seaside, CA | 34,063 | 37 | 26.0% |
| Pajaro, CA | 3,509 | 37 | 26.0% |
| Boronda, CA | 1,740 | 37 | 26.0% |
| City | Population | Air Quality Index | National Avg. |
| Blackwater, AZ | 1,740 | 74 | 48.0% |
| Fern Acres, HI | 1,740 | 16 | 68.0% |
| Wilder, ID | 1,740 | 36 | 28.0% |
| Charlotte Hall, MD | 1,740 | 47 | 6.0% |
| Richmond, ME | 1,740 | 28 | 44.0% |
| Boronda, CA | 1,740 | 37 | 26.0% |
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