Shelter Cove, California has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 9.1 °C (low) to 17.2 °C (high). Annual precipitation averages 1596.4 Millimeters. Shelter Cove is located in USDA Plant Hardiness Zone 10a. The growing season typically runs from the last frost around Feb. 11 - Feb. 20 through the first frost around Dec. 21 - Dec. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 7.4 °C | 13.6 °C | 284.99 mm |
| February | 7.2 °C | 14.2 °C | 225.3 mm |
| March | 7.1 °C | 14.9 °C | 208.79 mm |
| April | 7.8 °C | 16.2 °C | 137.16 mm |
| May | 9.1 °C | 18.1 °C | 91.69 mm |
| June | 10.1 °C | 19.7 °C | 34.29 mm |
| July | 11.3 °C | 20.1 °C | 1.78 mm |
| August | 11.5 °C | 20.7 °C | 5.59 mm |
| September | 11.1 °C | 20.7 °C | 14.48 mm |
| October | 10.3 °C | 19.1 °C | 94.49 mm |
| November | 8.6 °C | 15.8 °C | 180.59 mm |
| December | 7.3 °C | 13.8 °C | 317.25 mm |
| Annual | 9.1 °C | 17.2 °C | 1596.4 mm |
| Average First Frost Date | Dec. 21 - Dec. 31 |
| Average Last Frost Date | Feb. 11 - Feb. 20 |
| Average Days With Frost | 10-20 Days |
| Plant Hardiness Zone | Zone 10a : -1.1°C to 1.7°C |
| Plant Hardiness Zone - 2012 | Zone 10a : -1.1°C to 1.7°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |