Leggett, California has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 6.1 °C (low) to 19.5 °C (high). Annual precipitation averages 1709.7 Millimeters. Leggett is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 2.8 °C | 12.1 °C | 324.87 mm |
| February | 2.9 °C | 13.5 °C | 270.26 mm |
| March | 3.6 °C | 15.3 °C | 231.39 mm |
| April | 4.6 °C | 16.7 °C | 116.84 mm |
| May | 6.9 °C | 19.7 °C | 61.72 mm |
| June | 9.3 °C | 23.8 °C | 21.84 mm |
| July | 11 °C | 28.9 °C | 3.05 mm |
| August | 10.6 °C | 28.4 °C | 3.81 mm |
| September | 9.1 °C | 27.6 °C | 15.24 mm |
| October | 6.2 °C | 21.4 °C | 92.96 mm |
| November | 4.2 °C | 15.1 °C | 216.66 mm |
| December | 2.2 °C | 11.1 °C | 351.03 mm |
| Annual | 6.1 °C | 19.5 °C | 1709.67 mm |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 10-20 Days |
| Plant Hardiness Zone | Zone 9a : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 9a : -6.7°C to -3.9°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |