| 2023 Hardiness Zone: | Zone 10b: 35°F to 40°F Zone 10a: 30°F to 35°F |
| 2012 Hardiness Zone: | Zone 10b: 35°F to 40°F Zone 10a: 30°F to 35°F |
| 1990 Hardiness Zone: | Zone 10a: 30F to 35F |
| Average First Frost Date: | No Frost |
| Average Last Frost Date: | No Frost |
| Koppen-Geiger Climate Zone: | BSk - Cold Semi-Arid Climate |
| Ecoregion: | |
| Heat Zone Days: | 8 - 14 days Over 86°F |
Annual Climate Data for ZIP Code 92869 - Orange, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 43 | 45 | 46 | 48 | 53 | 57 | 60 | 61 | 59 | 54 | 46 | 42 | 51 |
| Avg Max Temp (°F) | 68 | 69 | 70 | 74 | 76 | 82 | 86 | 88 | 86 | 81 | 74 | 69 | 77 |
| Avg Precip (In.) | 3.61 | 3.41 | 2.8 | .93 | .27 | .08 | .02 | .14 | .34 | .45 | 1.19 | 1.92 | 15.16 |