| 2023 Hardiness Zone: | Zone 9b: 25°F to 30°F Zone 10a: 30°F to 35°F |
| 2012 Hardiness Zone: | Zone 10b: 35°F to 40°F 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: | 15 - 30 days Over 86°F |
Annual Climate Data for ZIP Code 94020 - La Honda, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 36 | 37 | 39 | 40 | 44 | 47 | 50 | 50 | 49 | 44 | 39 | 35 | 42 |
| Avg Max Temp (°F) | 58 | 60 | 63 | 68 | 73 | 79 | 82 | 82 | 80 | 74 | 63 | 58 | 70 |
| Avg Precip (In.) | 7.61 | 7.34 | 5.79 | 2.42 | .83 | .25 | .07 | .14 | .38 | 2.04 | 4.65 | 5.58 | 37.12 |