| 2023 Hardiness Zone: | Zone 8a: 10°F to 15°F |
| 2012 Hardiness Zone: | Zone 8a: 10°F to 15°F Zone 7b: 5°F to 10°F |
| 1990 Hardiness Zone: | Zone 7b: 5F to 10F |
| Average First Frost Date: | Oct. 21 - Oct. 31 |
| Average Last Frost Date: | May 11 - May 20 |
| Koppen-Geiger Climate Zone: | Csb - Warm-Summer Mediterranean Climate |
| Ecoregion: | |
| Heat Zone Days: | 46 - 60 days Over 86°F |
Annual Climate Data for ZIP Code 96038 - Grenada, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 24 | 26 | 30 | 34 | 39 | 46 | 51 | 51 | 44 | 35 | 29 | 25 | 36 |
| Avg Max Temp (°F) | 45 | 51 | 57 | 63 | 73 | 81 | 90 | 90 | 82 | 70 | 53 | 45 | 67 |
| Avg Precip (In.) | 2.93 | 1.94 | 1.62 | .92 | 1.15 | .88 | .37 | .36 | .67 | 1.23 | 2.32 | 2.81 | 17.21 |