| 2023 Hardiness Zone: | Zone 9b: 25°F to 30°F |
| 2012 Hardiness Zone: | Zone 9b: 25°F to 30°F |
| 1990 Hardiness Zone: | Zone 9b: 25F to 30F |
| Average First Frost Date: | Nov. 21 - Nov. 30 |
| Average Last Frost Date: | Mar. 1 - Mar. 10 |
| Koppen-Geiger Climate Zone: | Csa - Hot-Summer Mediterranean Climate |
| Ecoregion: | |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 95746 - Granite Bay, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 37 | 40 | 43 | 45 | 51 | 56 | 60 | 59 | 56 | 50 | 42 | 37 | 48 |
| Avg Max Temp (°F) | 54 | 60 | 65 | 71 | 80 | 89 | 95 | 94 | 89 | 78 | 63 | 55 | 75 |
| Avg Precip (In.) | 4.51 | 4.26 | 4.16 | 1.72 | .7 | .28 | .11 | .1 | .48 | 1.34 | 3.27 | 3.25 | 24.18 |