Kentfield, California has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 47.8 °F (low) to 69.3 °F (high). Annual precipitation averages 43.3 Inches. Kentfield is located in USDA Plant Hardiness Zone 9b.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 41.9 °F | 56.4 °F | 8.93 in. |
| February | 43.4 °F | 60.3 °F | 8.61 in. |
| March | 44.6 °F | 63.4 °F | 5.81 in. |
| April | 46.2 °F | 67.0 °F | 2.57 in. |
| May | 48.8 °F | 71.5 °F | 1.3 in. |
| June | 51.8 °F | 77.4 °F | 0.34 in. |
| July | 53.4 °F | 80.1 °F | 0.01 in. |
| August | 54.0 °F | 80.4 °F | 0.06 in. |
| September | 53.0 °F | 79.6 °F | 0.11 in. |
| October | 50.0 °F | 74.2 °F | 1.93 in. |
| November | 45.4 °F | 64.1 °F | 4.21 in. |
| December | 41.5 °F | 56.7 °F | 9.38 in. |
| Annual | 47.8 °F | 69.3 °F | 43.26 in. |
| Average First Frost Date | Frost Rare |
| Average Last Frost Date | |
| Average Days With Frost | Frost Rare |
| Plant Hardiness Zone | Zone 9b : 25°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 9b : 25°F to 20°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |