| 2023 Hardiness Zone: | Zone 9b: 25°F to 30°F |
| 2012 Hardiness Zone: | Zone 9b: 25°F to 30°F |
| 1990 Hardiness Zone: | Zone 10a: 30F to 35F |
| Average First Frost Date: | Dec. 21 - Dec. 31 |
| Average Last Frost Date: | Feb. 11 - Feb. 20 |
| Koppen-Geiger Climate Zone: | Csb - Warm-Summer Mediterranean Climate |
| Ecoregion: | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 94972 - Valley Ford, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 38 | 40 | 42 | 43 | 45 | 48 | 50 | 50 | 49 | 45 | 41 | 37 | 44 |
| Avg Max Temp (°F) | 57 | 61 | 63 | 67 | 71 | 75 | 78 | 78 | 77 | 73 | 64 | 58 | 68 |
| Avg Precip (In.) | 8.49 | 7.5 | 5.99 | 2.2 | .98 | .24 | .08 | .14 | .5 | 2.02 | 5.61 | 6.1 | 39.84 |