Livermore, California has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 9.1 °C (low) to 22.5 °C (high). Annual precipitation averages 377.5 Millimeters. Livermore 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 | 4.4 °C | 13.9 °C | 74.17 mm |
| February | 5.4 °C | 16.1 °C | 70.87 mm |
| March | 6.6 °C | 18.3 °C | 57.15 mm |
| April | 7.9 °C | 20.7 °C | 30.23 mm |
| May | 10.2 °C | 23.9 °C | 13.21 mm |
| June | 12.2 °C | 27.8 °C | 3.3 mm |
| July | 13.9 °C | 30.8 °C | 0 mm |
| August | 13.9 °C | 30.7 °C | 0.76 mm |
| September | 13.2 °C | 29.7 °C | 2.29 mm |
| October | 10.6 °C | 25.3 °C | 18.03 mm |
| November | 6.8 °C | 18.7 °C | 35.81 mm |
| December | 4.3 °C | 14.2 °C | 71.63 mm |
| Annual | 9.1 °C | 22.5 °C | 377.45 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 | Normal |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |