| 2023 Hardiness Zone: | Zone 9a: 20°F to 25°F Zone 9b: 25°F to 30°F Zone 10a: 30°F to 35°F | |
| 2012 Hardiness Zone: | Zone 10b: 35°F to 40°F Zone 8b: 15°F to 20°F Zone 10a: 30°F to 35°F Zone 9b: 25°F to 30°F Zone 9a: 20°F to 25°F | |
| 1990 Hardiness Zone: | Zone 9b: 25F to 30F | |
| Average First Frost Date: | Dec. 1 - Dec. 10 | |
| Average Last Frost Date: | Mar. 11 - Mar. 20 | |
| Koppen-Geiger Climate Zone: | Csa - Hot-Summer Mediterranean Climate | |
| Ecoregion: | ||
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 92082 - Valley Center, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 39 | 40 | 42 | 44 | 50 | 54 | 57 | 59 | 57 | 50 | 43 | 38 | 48 |
| Avg Max Temp (°F) | 67 | 68 | 68 | 73 | 77 | 84 | 90 | 91 | 87 | 81 | 73 | 67 | 77 |
| Avg Precip (In.) | 3.29 | 3.06 | 3.16 | 1.08 | .48 | .16 | .07 | .2 | .28 | .62 | 1.3 | 1.64 | 15.35 |