| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 37°F | 60°F | 47°F | 5.6" |
| February | 41°F | 64°F | 52°F | 4.8" |
| March | 45°F | 69°F | 56°F | 4.6" |
| April | 47°F | 74°F | 60°F | 2.5" |
| May | 52°F | 82°F | 67°F | 0.7" |
| June | 57°F | 91°F | 74°F | 0.3" |
| July | 60°F | 96°F | 77°F | 0.0" |
| August | 59°F | 95°F | 75°F | 0.0" |
| September | 56°F | 92°F | 73°F | 0.1" |
| October | 50°F | 81°F | 64°F | 1.9" |
| November | 43°F | 68°F | 54°F | 2.3" |
| December | 37°F | 59°F | 47°F | 4.6" |
| Index | Guinda | California | National |
| Air quality index | 31 | 55 | 42 |
| Pollution index | 360,238 | 10,473,190 | 2,726,193 |
| Measurement | Total |
| Days measured | 360 |
| Days with good air quality | 360 |
| Days with moderate air quality | 0 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.002% |
| Benzene | 0.004% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.002% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Esparto, CA | 4,009 | 35 | 30.0% |
| Arbuckle, CA | 3,368 | 44 | 12.0% |
| College City, CA | 205 | 44 | 12.0% |
| Dunnigan, CA | 1,391 | 44 | 12.0% |
| Madison, CA | 502 | 52 | 4.0% |
| Guinda, CA | 113 | 31 | 38.0% |
| City | Population | Air Quality Index | National Avg. |
| Peterman, AL | 113 | 37 | 26.0% |
| McNab, AR | 113 | 39 | 22.0% |
| Sehili, AZ | 113 | 17 | 66.0% |
| Martell, CA | 113 | 39 | 22.0% |
| Monmouth, CA | 113 | 60 | 20.0% |
| Guinda, CA | 113 | 31 | 38.0% |
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