| 2023 Hardiness Zone: | Zone 10b: 35°F to 40°F | |
| 2012 Hardiness Zone: | Zone 10a: 30°F to 35°F | |
| 1990 Hardiness Zone: | Zone 11a: 40F to 45F | |
| Average First Frost Date: | Frost Rare | |
| Average Last Frost Date: | Jan. 21 - Jan. 31 | |
| Koppen-Geiger Climate Zone: | BSk - Cold Semi-Arid Climate | |
| Ecoregion: | ||
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 15 - 30 days Over 86°F |
Annual Climate Data for ZIP Code 92122 - San Diego, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 46 | 48 | 50 | 53 | 57 | 60 | 64 | 65 | 63 | 58 | 50 | 46 | 55 |
| Avg Max Temp (°F) | 67 | 67 | 69 | 70 | 71 | 75 | 79 | 80 | 79 | 76 | 71 | 67 | 73 |
| Avg Precip (In.) | 2.59 | 2.34 | 2.52 | .88 | .25 | .1 | .03 | .1 | .28 | .45 | 1.19 | 1.42 | 12.14 |