| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 9a: 20°F to 25°F Zone 9b: 25°F to 30°F | |
| 2012 Hardiness Zone: | Zone 8b: 15°F to 20°F 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: | Oct. 11 - Oct. 20 | |
| Average Last Frost Date: | May 21 - May 31 | |
| Koppen-Geiger Climate Zone: | Csa - Hot-Summer Mediterranean Climate | |
| Ecoregion: | ||
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 46 - 60 days Over 86°F |
Annual Climate Data for ZIP Code 92070 - Santa Ysabel, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 35 | 35 | 36 | 39 | 43 | 49 | 56 | 57 | 53 | 45 | 38 | 34 | 43 |
| Avg Max Temp (°F) | 57 | 59 | 61 | 67 | 73 | 84 | 91 | 90 | 86 | 75 | 64 | 58 | 72 |
| Avg Precip (In.) | 5.08 | 5.13 | 5.25 | 1.71 | .68 | .12 | .37 | .62 | .6 | .96 | 2.24 | 2.99 | 25.76 |