Cloverdale, California has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 45.1 °F (low) to 74.5 °F (high). Annual precipitation averages 43.8 Inches. Cloverdale is located in USDA Plant Hardiness Zone 9b. The growing season typically runs from the last frost around Feb. 11 - Feb. 20 through the first frost around Dec. 1 - Dec. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 37.8 °F | 58.0 °F | 8.59 in. |
| February | 39.0 °F | 61.4 °F | 8.31 in. |
| March | 41.1 °F | 65.4 °F | 6.26 in. |
| April | 43.4 °F | 71.6 °F | 3.03 in. |
| May | 47.3 °F | 79.1 °F | 1.62 in. |
| June | 51.5 °F | 86.6 °F | 0.25 in. |
| July | 53.5 °F | 91.6 °F | 0.04 in. |
| August | 52.8 °F | 91.0 °F | 0.06 in. |
| September | 50.5 °F | 88.1 °F | 0.14 in. |
| October | 46.2 °F | 78.9 °F | 1.77 in. |
| November | 40.6 °F | 65.4 °F | 4.32 in. |
| December | 37.3 °F | 57.4 °F | 9.38 in. |
| Annual | 45.1 °F | 74.5 °F | 43.77 in. |
| Average First Frost Date | Dec. 1 - Dec. 10 |
| Average Last Frost Date | Feb. 11 - Feb. 20 |
| 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 |