| 2023 Hardiness Zone: | Zone 9a: 20°F to 25°F Zone 9b: 25°F to 30°F |
| 2012 Hardiness Zone: | Zone 9a: 20°F to 25°F Zone 9b: 25°F to 30°F |
| 1990 Hardiness Zone: | Zone 9b: 25F to 30F |
| 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 95528 - Carlotta, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 38 | 39 | 40 | 42 | 45 | 50 | 52 | 52 | 49 | 45 | 41 | 37 | 44 |
| Avg Max Temp (°F) | 55 | 57 | 58 | 61 | 65 | 68 | 73 | 73 | 73 | 69 | 59 | 54 | 64 |
| Avg Precip (In.) | 10.25 | 9.38 | 9.04 | 4.17 | 2.06 | .71 | .11 | .39 | 1.1 | 3.4 | 8.53 | 10.19 | 59.32 |