Alameda, California has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 51.2 °F (low) to 66.3 °F (high). Annual precipitation averages 22.1 Inches. Alameda is located in USDA Plant Hardiness Zone 10a.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 44.9 °F | 57.9 °F | 4.18 in. |
| February | 46.7 °F | 60.6 °F | 4.13 in. |
| March | 48.1 °F | 62.8 °F | 3.27 in. |
| April | 49.3 °F | 64.9 °F | 1.54 in. |
| May | 52.2 °F | 67.3 °F | 0.76 in. |
| June | 54.4 °F | 70.7 °F | 0.15 in. |
| July | 56.4 °F | 71.1 °F | 0.02 in. |
| August | 57.2 °F | 72.1 °F | 0.04 in. |
| September | 57.0 °F | 73.9 °F | 0.11 in. |
| October | 54.6 °F | 72.0 °F | 0.97 in. |
| November | 48.9 °F | 64.4 °F | 2.37 in. |
| December | 44.6 °F | 58.4 °F | 4.52 in. |
| Annual | 51.2 °F | 66.3 °F | 22.06 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 |