Monterey, California has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 48.9 °F (low) to 63.1 °F (high). Annual precipitation averages 17.6 Inches. Monterey is located in USDA Plant Hardiness Zone 10a.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 44.1 °F | 59.6 °F | 3.8 in. |
| February | 44.9 °F | 59.7 °F | 3.4 in. |
| March | 45.7 °F | 60.4 °F | 2.61 in. |
| April | 46.7 °F | 60.3 °F | 1.27 in. |
| May | 49.6 °F | 63.0 °F | 0.5 in. |
| June | 51.9 °F | 64.5 °F | 0.13 in. |
| July | 54.1 °F | 64.9 °F | 0.04 in. |
| August | 54.6 °F | 66.5 °F | 0.04 in. |
| September | 53.7 °F | 67.5 °F | 0.07 in. |
| October | 50.9 °F | 67.6 °F | 0.79 in. |
| November | 46.8 °F | 63.1 °F | 1.6 in. |
| December | 43.5 °F | 59.6 °F | 3.3 in. |
| Annual | 48.9 °F | 63.1 °F | 17.55 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 |