| 2023 Hardiness Zone: | Zone 9a: 20°F to 25°F Zone 9b: 25°F to 30°F Zone 10a: 30°F to 35°F | |
| 2012 Hardiness Zone: | Zone 9a: 20°F to 25°F Zone 9b: 25°F to 30°F Zone 10a: 30°F to 35°F | |
| 1990 Hardiness Zone: | Zone 9a: 20F to 25F | |
| Average First Frost Date: | Dec. 1 - Dec. 10 | |
| Average Last Frost Date: | Mar. 21 - Mar. 31 | |
| Koppen-Geiger Climate Zone: | Csb - Warm-Summer Mediterranean Climate | |
| Ecoregion: | ||
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 94550 - Livermore, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 37 | 40 | 42 | 44 | 48 | 52 | 54 | 54 | 53 | 48 | 41 | 36 | 46 |
| Avg Max Temp (°F) | 56 | 61 | 65 | 70 | 76 | 83 | 88 | 88 | 85 | 77 | 64 | 57 | 73 |
| Avg Precip (In.) | 3.11 | 2.94 | 2.58 | 1.02 | .45 | .09 | .03 | .07 | .24 | .89 | 1.98 | 2.16 | 15.59 |