| 2023 Hardiness Zone: | Zone 10a: 30°F to 35°F |
| 2012 Hardiness Zone: | Zone 10a: 30°F to 35°F |
| 1990 Hardiness Zone: | Zone 10a: 30F to 35F |
| Average First Frost Date: | No Frost |
| Average Last Frost Date: | No Frost |
| Koppen-Geiger Climate Zone: | Csb - Warm-Summer Mediterranean Climate |
| Ecoregion: | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 94804 - Richmond, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 43 | 45 | 47 | 49 | 52 | 55 | 56 | 57 | 56 | 53 | 48 | 43 | 50 |
| Avg Max Temp (°F) | 57 | 61 | 63 | 67 | 69 | 72 | 73 | 73 | 75 | 72 | 64 | 58 | 67 |
| Avg Precip (In.) | 4.9 | 4.33 | 3.71 | 1.42 | .46 | .13 | .07 | .08 | .27 | 1.28 | 3.57 | 3.43 | 23.64 |