| 2023 Hardiness Zone: | Zone 10a: 30°F to 35°F |
| 2012 Hardiness Zone: | Zone 10a: 30°F to 35°F |
| 1990 Hardiness Zone: | Zone 9b: 25F to 30F |
| Average First Frost Date: | Jan. 21 - Jan. 31 |
| Average Last Frost Date: | Jan. 21 - Jan. 31 |
| Koppen-Geiger Climate Zone: | Csb - Warm-Summer Mediterranean Climate |
| Ecoregion: | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 94704 - Berkeley, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 42 | 44 | 46 | 47 | 50 | 53 | 55 | 55 | 55 | 52 | 47 | 42 | 49 |
| Avg Max Temp (°F) | 55 | 59 | 62 | 65 | 68 | 72 | 74 | 74 | 74 | 71 | 62 | 56 | 66 |
| Avg Precip (In.) | 5.1 | 5.08 | 4.14 | 1.67 | .66 | .15 | .07 | .1 | .39 | 1.38 | 3.82 | 3.81 | 26.36 |