| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°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 8a: 10°F to 15°F | |
| 1990 Hardiness Zone: | Zone 9a: 20F to 25F | |
| Average First Frost Date: | Nov. 21 - Nov. 30 | |
| Average Last Frost Date: | Mar. 11 - Mar. 20 | |
| Koppen-Geiger Climate Zone: | BSh - Hot Semi-Arid Climate | |
| Ecoregion: | ||
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 181 - 210 days Over 86°F |
Annual Climate Data for ZIP Code 92252 - Joshua Tree, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 35 | 38 | 41 | 46 | 53 | 61 | 67 | 67 | 61 | 49 | 39 | 34 | 49 |
| Avg Max Temp (°F) | 60 | 60 | 69 | 75 | 83 | 92 | 97 | 98 | 92 | 80 | 67 | 58 | 77 |
| Avg Precip (In.) | 1.2 | 1.14 | .98 | .22 | .15 | .01 | .53 | .7 | .52 | .23 | .4 | .82 | 6.89 |