| 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 |
| 1990 Hardiness Zone: | Zone 9b: 25F to 30F |
| Average First Frost Date: | Dec. 11 - Dec. 20 |
| Average Last Frost Date: | Feb. 21 - Feb. 29 |
| Koppen-Geiger Climate Zone: | Csb - Warm-Summer Mediterranean Climate |
| Ecoregion: | |
| Heat Zone Days: | 1 - 7 days Over 86°F |
Annual Climate Data for ZIP Code 95460 - Mendocino, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 40 | 41 | 42 | 43 | 45 | 48 | 49 | 50 | 49 | 46 | 43 | 39 | 45 |
| Avg Max Temp (°F) | 56 | 57 | 59 | 61 | 63 | 65 | 67 | 67 | 68 | 65 | 60 | 56 | 62 |
| Avg Precip (In.) | 7.31 | 6.98 | 6.52 | 2.94 | 1.51 | .4 | .12 | .31 | .77 | 2.52 | 5.64 | 6.45 | 41.47 |