West Sacramento, California has a Hot-Summer Mediterranean Climate climate (Köppen classification: Csa). Average annual temperatures range from 48.6 °F (low) to 74.3 °F (high). Annual precipitation averages 19.6 Inches. West Sacramento is located in USDA Plant Hardiness Zone 9b. The growing season typically runs from the last frost around Feb. 1 - Feb. 10 through the first frost around Dec. 21 - Dec. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 39.0 °F | 55.3 °F | 3.87 in. |
| February | 41.2 °F | 60.5 °F | 3.71 in. |
| March | 44.0 °F | 65.8 °F | 2.83 in. |
| April | 46.6 °F | 71.5 °F | 1.44 in. |
| May | 51.8 °F | 79.8 °F | 0.81 in. |
| June | 56.4 °F | 87.5 °F | 0.21 in. |
| July | 58.9 °F | 92.6 °F | 0.0 in. |
| August | 58.3 °F | 91.8 °F | 0.03 in. |
| September | 55.9 °F | 88.4 °F | 0.1 in. |
| October | 49.9 °F | 78.3 °F | 0.95 in. |
| November | 42.3 °F | 64.7 °F | 1.84 in. |
| December | 38.4 °F | 55.6 °F | 3.76 in. |
| Annual | 48.6 °F | 74.3 °F | 19.55 in. |
| Average First Frost Date | Dec. 21 - Dec. 31 |
| Average Last Frost Date | Feb. 1 - Feb. 10 |
| Average Days With Frost | 10-20 Days |
| Plant Hardiness Zone | Zone 9b : 25°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 9b : 25°F to 20°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Csa - Hot-Summer Mediterranean Climate |