El Cerrito, California has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 10.9 °C (low) to 26.3 °C (high). Annual precipitation averages 281.9 Millimeters. El Cerrito is located in USDA Plant Hardiness Zone 10a. The growing season typically runs from the last frost around Jan. 21 - Jan. 31 through the first frost around Jan. 1 - Jan. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 6.4 °C | 19.7 °C | 60.45 mm |
| February | 6.6 °C | 19.9 °C | 73.41 mm |
| March | 7.8 °C | 21.7 °C | 43.94 mm |
| April | 9.2 °C | 24.1 °C | 15.49 mm |
| May | 11.7 °C | 26.4 °C | 5.59 mm |
| June | 13.9 °C | 30.3 °C | 1.27 mm |
| July | 16.6 °C | 34.1 °C | 2.54 mm |
| August | 17.1 °C | 34.9 °C | 1.27 mm |
| September | 15.7 °C | 33 °C | 3.05 mm |
| October | 12.3 °C | 28.2 °C | 11.43 mm |
| November | 8.2 °C | 23.6 °C | 16 mm |
| December | 5.8 °C | 19.4 °C | 47.5 mm |
| Annual | 10.9 °C | 26.3 °C | 281.94 mm |
| Average First Frost Date | Jan. 1 - Jan. 10 |
| Average Last Frost Date | Jan. 21 - Jan. 31 |
| Average Days With Frost | Frost Rare |
| Plant Hardiness Zone | Zone 10a : -1.1°C to 1.7°C |
| Plant Hardiness Zone - 2012 | Zone 9b : -3.9°C to -1.1°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |