| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 8a: 10°F to 15°F Zone 7b: 5°F to 10°F | |
| 2012 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 9a: 20°F to 25°F Zone 8a: 10°F to 15°F | |
| 1990 Hardiness Zone: | Zone 8b: 15F to 20F | |
| Average First Frost Date: | Dec. 1 - Dec. 10 | |
| Average Last Frost Date: | Mar. 11 - Mar. 20 | |
| 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 92372 - Pinon Hills, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 32 | 34 | 34 | 38 | 42 | 50 | 57 | 58 | 53 | 46 | 38 | 32 | 43 |
| Avg Max Temp (°F) | 49 | 51 | 56 | 62 | 69 | 78 | 84 | 84 | 78 | 67 | 57 | 50 | 65 |
| Avg Precip (In.) | 4.89 | 3.72 | 4.64 | .89 | .55 | .13 | .13 | .28 | .54 | .78 | 1.05 | 2.68 | 20.28 |