| 2023 Hardiness Zone: | Zone 9a: 20°F to 25°F 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. 11 - Mar. 20 |
| 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 95765 - Rocklin, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 36 | 39 | 41 | 44 | 50 | 55 | 59 | 58 | 54 | 48 | 41 | 36 | 47 |
| Avg Max Temp (°F) | 54 | 60 | 65 | 71 | 81 | 90 | 97 | 96 | 90 | 79 | 64 | 54 | 75 |
| Avg Precip (In.) | 4.32 | 4.04 | 3.84 | 1.6 | .69 | .28 | .07 | .1 | .44 | 1.25 | 3.01 | 3.23 | 22.85 |