| 2023 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 | |
| 2012 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 9a: 20°F to 25°F Zone 10a: 30°F to 35°F Zone 9b: 25°F to 30°F Zone 8a: 10°F to 15°F | |
| 1990 Hardiness Zone: | Zone 8a: 10F to 15F | |
| Average First Frost Date: | Nov. 1 - Nov. 10 | |
| Average Last Frost Date: | Apr. 21 - Apr. 30 | |
| Koppen-Geiger Climate Zone: | Csb - Warm-Summer Mediterranean Climate | |
| Ecoregion: | ||
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 15 - 30 days Over 86°F |
Annual Climate Data for ZIP Code 93453 - Santa Margarita, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 33 | 36 | 37 | 38 | 43 | 49 | 54 | 53 | 50 | 42 | 36 | 33 | 42 |
| Avg Max Temp (°F) | 60 | 62 | 64 | 71 | 78 | 87 | 92 | 92 | 86 | 77 | 65 | 61 | 75 |
| Avg Precip (In.) | 1.95 | 1.98 | 2.44 | .55 | .29 | .08 | .02 | .13 | .48 | .4 | .8 | 1.28 | 10.4 |