| 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 9a: 20F to 25F |
| Average First Frost Date: | Nov. 11 - Nov. 20 |
| Average Last Frost Date: | Apr. 1 - Apr. 10 |
| Koppen-Geiger Climate Zone: | Csa - Hot-Summer Mediterranean Climate |
| Ecoregion: | |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 95633 - Garden Valley, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 35 | 37 | 39 | 42 | 48 | 54 | 59 | 59 | 55 | 48 | 39 | 35 | 46 |
| Avg Max Temp (°F) | 54 | 57 | 61 | 66 | 75 | 85 | 91 | 91 | 85 | 75 | 61 | 55 | 71 |
| Avg Precip (In.) | 7.79 | 6.14 | 5.57 | 3.2 | 1.99 | .6 | .05 | .13 | .4 | 1.76 | 3.94 | 6.39 | 37.96 |