Pacific Grove, California has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 48.5 °F (low) to 63.8 °F (high). Annual precipitation averages 17.9 Inches. Pacific Grove is located in USDA Plant Hardiness Zone 10a.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 43.8 °F | 60.0 °F | 3.76 in. |
| February | 44.5 °F | 60.3 °F | 3.5 in. |
| March | 45.1 °F | 61.2 °F | 2.72 in. |
| April | 46.2 °F | 61.5 °F | 1.34 in. |
| May | 49.1 °F | 63.6 °F | 0.5 in. |
| June | 51.4 °F | 65.4 °F | 0.14 in. |
| July | 53.6 °F | 66.3 °F | 0.04 in. |
| August | 54.4 °F | 67.2 °F | 0.05 in. |
| September | 53.5 °F | 68.5 °F | 0.08 in. |
| October | 50.5 °F | 68.2 °F | 0.78 in. |
| November | 46.4 °F | 64.1 °F | 1.69 in. |
| December | 43.1 °F | 59.8 °F | 3.34 in. |
| Annual | 48.5 °F | 63.8 °F | 17.94 in. |
| Average First Frost Date | No Frost |
| Average Last Frost Date | |
| Average Days With Frost | Frost Free |
| Plant Hardiness Zone | Zone 10a : 30°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 10a : 30°F to 25°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |