| 2023 Hardiness Zone: | Zone 10b: 35°F to 40°F Zone 11a: 40°F to 45°F |
| 2012 Hardiness Zone: | Zone 10b: 35°F to 40°F |
| 1990 Hardiness Zone: | Zone 10b: 35F to 40F |
| 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 90254 - Hermosa Beach, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 48 | 49 | 51 | 53 | 57 | 60 | 63 | 64 | 63 | 59 | 52 | 48 | 55 |
| Avg Max Temp (°F) | 66 | 66 | 67 | 69 | 70 | 74 | 77 | 78 | 78 | 75 | 70 | 67 | 71 |
| Avg Precip (In.) | 3.02 | 3.09 | 2.49 | .62 | .25 | .08 | .03 | .15 | .22 | .4 | 1.11 | 1.76 | 13.2 |