Cazadero, California has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 44.8 °F (low) to 71.3 °F (high). Annual precipitation averages 55.8 Inches. Cazadero is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Jan. 21 - Jan. 31 through the first frost around Jan. 11 - Jan. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 38.1 °F | 57.7 °F | 10.86 in. |
| February | 39.3 °F | 61.1 °F | 10.95 in. |
| March | 41.2 °F | 64.6 °F | 7.6 in. |
| April | 43.0 °F | 68.4 °F | 3.59 in. |
| May | 46.6 °F | 74.2 °F | 2.37 in. |
| June | 50.2 °F | 80.7 °F | 0.33 in. |
| July | 52.1 °F | 83.3 °F | 0.03 in. |
| August | 51.9 °F | 83.7 °F | 0.1 in. |
| September | 49.9 °F | 82.7 °F | 0.19 in. |
| October | 46.1 °F | 76.3 °F | 2.7 in. |
| November | 40.9 °F | 65.2 °F | 5.5 in. |
| December | 37.7 °F | 57.3 °F | 11.54 in. |
| Annual | 44.8 °F | 71.3 °F | 55.76 in. |
| Average First Frost Date | Jan. 11 - Jan. 20 |
| Average Last Frost Date | Jan. 21 - Jan. 31 |
| Average Days With Frost | Frost Rare |
| Plant Hardiness Zone | Zone 9a : 20°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 9b : 25°F to 20°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |