| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 39°F | 68°F | 52°F | 2.7" |
| February | 41°F | 68°F | 53°F | 2.3" |
| March | 43°F | 70°F | 55°F | 1.9" |
| April | 44°F | 71°F | 56°F | 1.1" |
| May | 47°F | 71°F | 58°F | 0.3" |
| June | 51°F | 73°F | 60°F | 0.2" |
| July | 54°F | 75°F | 62°F | 0.0" |
| August | 55°F | 75°F | 62°F | 0.1" |
| September | 53°F | 78°F | 63°F | 0.1" |
| October | 50°F | 78°F | 61°F | 0.7" |
| November | 44°F | 73°F | 57°F | 1.0" |
| December | 39°F | 67°F | 51°F | 2.3" |
| Index | Casmalia | California | National |
| Air quality index | 46 | 55 | 50 |
| Pollution index | 5,611,110 | 18,106,726 | 5,066,862 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 230 |
| Days with moderate air quality | 132 |
| Days w/ poor A.Q. for sensitive groups | 3 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.020% |
| Benzene | 0.060% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.060% |
| Mercury | 0.010% |
| City, State | Population | Air Quality Index | National Avg. |
| Los Alamos, CA | 1,351 | 44 | 12% |
| Callender, CA | 1,814 | 46 | 8% |
| Orcutt, CA | 30,109 | 46 | 8% |
| Woodlands, CA | 1,075 | 46 | 8% |
| Vandenberg Village, CA | 7,146 | 46 | 8% |
| Casmalia, CA | 140 | 46 | 8% |
| City, State | Population | Air Quality Index | National Avg. |
| Milledgeville, OH | 140 | 38 | 24% |
| Fiddletown, CA | 140 | 52 | 4% |
| Moffett, OK | 140 | 36 | 28% |
| Ashton, SD | 140 | 20 | 60% |
| Taylor, NE | 140 | 19 | 62% |
| Casmalia, CA | 140 | 46 | 8% |
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