| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 41°F | 55°F | 46°F | n/a |
| February | 42°F | 57°F | 48°F | n/a |
| March | 44°F | 57°F | 49°F | n/a |
| April | 45°F | 59°F | 51°F | n/a |
| May | 48°F | 61°F | 53°F | n/a |
| June | 50°F | 65°F | 56°F | n/a |
| July | 52°F | 65°F | 57°F | n/a |
| August | 53°F | 68°F | 58°F | n/a |
| September | 52°F | 68°F | 58°F | n/a |
| October | 49°F | 66°F | 55°F | n/a |
| November | 46°F | 60°F | 51°F | n/a |
| December | 41°F | 54°F | 45°F | n/a |
| Index | Leggett | California | National |
| Air quality index | 33 | 55 | 42 |
| Pollution index | 3,041,840 | 10,473,190 | 2,726,193 |
| Measurement | Total |
| Days measured | 361 |
| Days with good air quality | 334 |
| Days with moderate air quality | 27 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.060% |
| Benzene | 0.040% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.040% |
| Mercury | 0.005% |
| City | Population | Air Quality Index | National Avg. |
| Benbow, CA | 152 | 27 | 46.0% |
| Laytonville, CA | 777 | 33 | 34.0% |
| Leggett, CA | 56 | 33 | 34.0% |
| City | Population | Air Quality Index | National Avg. |
| Hughes, AK | 56 | 38 | 24.0% |
| Northway Junction, AK | 56 | 38 | 24.0% |
| Shageluk, AK | 56 | 31 | 38.0% |
| Beedeville, AR | 56 | 45 | 10.0% |
| Aspen Springs, CA | 56 | 47 | 6.0% |
| Leggett, CA | 56 | 33 | 34.0% |
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