Anza, California has a Hot Semi-Arid Climate climate (Köppen classification: BSh). Average annual temperatures range from 42.7 °F (low) to 72.4 °F (high). Annual precipitation averages 13.2 Inches. Anza is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 34.3 °F | 57.8 °F | 2.48 in. |
| February | 34.0 °F | 58.0 °F | 2.87 in. |
| March | 35.7 °F | 62.6 °F | 1.82 in. |
| April | 37.4 °F | 66.6 °F | 0.93 in. |
| May | 41.9 °F | 74.3 °F | 0.39 in. |
| June | 47.9 °F | 84.6 °F | 0.05 in. |
| July | 56.4 °F | 91.0 °F | 0.46 in. |
| August | 56.7 °F | 91.4 °F | 0.31 in. |
| September | 52.4 °F | 85.9 °F | 0.45 in. |
| October | 44.8 °F | 75.1 °F | 0.57 in. |
| November | 38.0 °F | 65.2 °F | 0.92 in. |
| December | 32.9 °F | 56.4 °F | 1.92 in. |
| Annual | 42.7 °F | 72.4 °F | 13.17 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8b : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8b : 15°F to 20°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | BSh - Hot Semi-Arid Climate |