| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°F Zone 8a: 10°F to 15°F Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°F Zone 8b: 15°F to 20°F Zone 10a: 30°F to 35°F Zone 9a: 20°F to 25°F Zone 9b: 25°F to 30°F | |
| 2012 Hardiness Zone: | Zone 8a: 10°F to 15°F Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°F Zone 8b: 15°F to 20°F Zone 10a: 30°F to 35°F Zone 9a: 20°F to 25°F Zone 9b: 25°F to 30°F | |
| 1990 Hardiness Zone: | Zone 9b: 25F to 30F | |
| Average First Frost Date: | Dec. 11 - Dec. 20 | |
| Average Last Frost Date: | Mar. 21 - Mar. 31 | |
| Koppen-Geiger Climate Zone: | Csa - Hot-Summer Mediterranean Climate | |
| Ecoregion: | ||
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 91759 - Mt Baldy, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 31 | 33 | 33 | 36 | 40 | 46 | 52 | 53 | 50 | 43 | 36 | 32 | 40 |
| Avg Max Temp (°F) | 51 | 53 | 56 | 62 | 68 | 77 | 83 | 82 | 78 | 69 | 59 | 52 | 66 |
| Avg Precip (In.) | 10.89 | 11.32 | 10.83 | 2.53 | 1.14 | .09 | .05 | .21 | .72 | 1.57 | 3.15 | 6.04 | 48.53 |