Cypress, California has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 55.2 °F (low) to 73.3 °F (high). Annual precipitation averages 12.1 Inches. Cypress is located in USDA Plant Hardiness Zone 10a.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 46.7 °F | 67.1 °F | 2.93 in. |
| February | 48.0 °F | 66.9 °F | 3.21 in. |
| March | 50.7 °F | 68.0 °F | 1.73 in. |
| April | 52.8 °F | 70.7 °F | 0.55 in. |
| May | 57.1 °F | 72.2 °F | 0.27 in. |
| June | 60.6 °F | 75.1 °F | 0.09 in. |
| July | 63.9 °F | 79.7 °F | 0.05 in. |
| August | 64.5 °F | 81.8 °F | 0.01 in. |
| September | 62.9 °F | 81.3 °F | 0.09 in. |
| October | 58.1 °F | 77.4 °F | 0.46 in. |
| November | 51.2 °F | 72.1 °F | 0.69 in. |
| December | 46.1 °F | 66.8 °F | 2.04 in. |
| Annual | 55.2 °F | 73.3 °F | 12.12 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 10b : 35°F to 30°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |