El Macero, California has a Hot-Summer Mediterranean Climate climate (Köppen classification: Csa). Average annual temperatures range from 9.1 °C (low) to 23.4 °C (high). Annual precipitation averages 494.3 Millimeters. 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 | 3.8 °C | 12.9 °C | 103.12 mm |
| February | 5 °C | 15.7 °C | 93.22 mm |
| March | 6.6 °C | 18.6 °C | 71.63 mm |
| April | 8 °C | 21.9 °C | 32.77 mm |
| May | 10.8 °C | 26.4 °C | 17.78 mm |
| June | 13.4 °C | 30.6 °C | 6.6 mm |
| July | 14.7 °C | 33.3 °C | 0.25 mm |
| August | 14.4 °C | 32.9 °C | 0.25 mm |
| September | 13.2 °C | 31.2 °C | 2.54 mm |
| October | 10 °C | 25.7 °C | 20.83 mm |
| November | 5.8 °C | 18.1 °C | 45.97 mm |
| December | 3.4 °C | 13.1 °C | 99.31 mm |
| Annual | 9.1 °C | 23.4 °C | 494.27 mm |
| 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 : -3.9°C to -1.1°C |
| Plant Hardiness Zone - 2012 | Zone 9b : -3.9°C to -1.1°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Csa - Hot-Summer Mediterranean Climate |