| 2023 Hardiness Zone: | Zone 10b: 35°F to 40°F Zone 11a: 40°F to 45°F | |
| 2012 Hardiness Zone: | Zone 10b: 35°F to 40°F | |
| 1990 Hardiness Zone: | Zone 10b: 35F to 40F | |
| Average First Frost Date: | No Frost | |
| Average Last Frost Date: | No Frost | |
| Koppen-Geiger Climate Zone: | BSk - Cold Semi-Arid Climate | |
| Ecoregion: | ||
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 92118 - Coronado, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 48 | 49 | 51 | 54 | 58 | 61 | 65 | 66 | 65 | 59 | 51 | 47 | 56 |
| Avg Max Temp (°F) | 66 | 66 | 67 | 68 | 69 | 71 | 74 | 76 | 76 | 74 | 70 | 67 | 70 |
| Avg Precip (In.) | 2.04 | 2.04 | 2.09 | .71 | .2 | .09 | .03 | .1 | .22 | .39 | 1.08 | 1.22 | 10.21 |