| 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 9a: 20°F to 25°F Zone 9b: 25°F to 30°F Zone 10a: 30°F to 35°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: | Csb - Warm-Summer Mediterranean Climate | |
| Ecoregion: | ||
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 92065 - Ramona, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 38 | 40 | 40 | 42 | 47 | 51 | 56 | 58 | 55 | 48 | 42 | 38 | 46 |
| Avg Max Temp (°F) | 66 | 68 | 69 | 73 | 78 | 85 | 92 | 93 | 89 | 82 | 73 | 67 | 78 |
| Avg Precip (In.) | 3.48 | 3.05 | 3.13 | 1.08 | .4 | .07 | .16 | .21 | .35 | .54 | 1.33 | 1.71 | 15.5 |