| 2023 Hardiness Zone: | Zone 10b: 35°F to 40°F Zone 10a: 30°F to 35°F |
| 2012 Hardiness Zone: | Zone 10b: 35°F to 40°F Zone 10a: 30°F to 35°F |
| 1990 Hardiness Zone: | Zone 10a: 30F to 35F |
| 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 94005 - Brisbane, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 45 | 47 | 48 | 49 | 51 | 53 | 54 | 55 | 55 | 54 | 49 | 45 | 50 |
| Avg Max Temp (°F) | 57 | 60 | 62 | 64 | 66 | 69 | 70 | 70 | 72 | 70 | 63 | 57 | 65 |
| Avg Precip (In.) | 4.74 | 4.19 | 3.55 | 1.34 | .54 | .16 | .04 | .08 | .28 | 1.4 | 3.4 | 3.46 | 23.18 |