| 2023 Hardiness Zone: | Zone 9b: 25°F to 30°F Zone 10a: 30°F to 35°F |
| 2012 Hardiness Zone: | Zone 9b: 25°F to 30°F Zone 10a: 30°F to 35°F |
| 1990 Hardiness Zone: | Zone 9b: 25F to 30F |
| Average First Frost Date: | Frost Rare |
| 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 94806 - San Pablo, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 42 | 45 | 47 | 48 | 51 | 54 | 56 | 57 | 56 | 53 | 47 | 42 | 50 |
| Avg Max Temp (°F) | 57 | 61 | 63 | 67 | 69 | 72 | 74 | 74 | 75 | 72 | 64 | 58 | 67 |
| Avg Precip (In.) | 5.04 | 4.52 | 3.96 | 1.55 | .53 | .13 | .07 | .08 | .31 | 1.35 | 3.76 | 3.53 | 24.83 |