El Macero, California has a Hot-Summer Mediterranean Climate climate (Köppen classification: Csa). Average annual temperatures range from 48.4 °F (low) to 74.1 °F (high). Annual precipitation averages 19.5 Inches. El Macero 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. 11 - Dec. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 38.8 °F | 55.3 °F | 4.06 in. |
| February | 41.0 °F | 60.3 °F | 3.67 in. |
| March | 43.8 °F | 65.5 °F | 2.82 in. |
| April | 46.4 °F | 71.5 °F | 1.29 in. |
| May | 51.5 °F | 79.5 °F | 0.7 in. |
| June | 56.2 °F | 87.0 °F | 0.26 in. |
| July | 58.4 °F | 92.0 °F | 0.01 in. |
| August | 57.9 °F | 91.3 °F | 0.01 in. |
| September | 55.7 °F | 88.2 °F | 0.1 in. |
| October | 50.0 °F | 78.3 °F | 0.82 in. |
| November | 42.4 °F | 64.6 °F | 1.81 in. |
| December | 38.1 °F | 55.6 °F | 3.91 in. |
| Annual | 48.4 °F | 74.1 °F | 19.46 in. |
| Average First Frost Date | Dec. 11 - Dec. 20 |
| 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 |