| 2023 Hardiness Zone: | Zone 10b: 35°F to 40°F Zone 9a: 20°F to 25°F Zone 10a: 30°F to 35°F Zone 9b: 25°F to 30°F | |
| 2012 Hardiness Zone: | Zone 10b: 35°F to 40°F Zone 9b: 25°F to 30°F Zone 10a: 30°F to 35°F | |
| 1990 Hardiness Zone: | Zone 10a: 30F to 35F | |
| Average First Frost Date: | Jan. 21 - Jan. 31 | |
| Average Last Frost Date: | Jan. 21 - Jan. 31 | |
| Koppen-Geiger Climate Zone: | BWh - Hot Desert Climate | |
| Ecoregion: | ||
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 181 - 210 days Over 86°F |
Annual Climate Data for ZIP Code 92283 - Winterhaven, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 43 | 45 | 49 | 54 | 61 | 69 | 77 | 77 | 72 | 60 | 48 | 42 | 58 |
| Avg Max Temp (°F) | 69 | 74 | 79 | 86 | 94 | 103 | 106 | 105 | 100 | 90 | 77 | 69 | 88 |
| Avg Precip (In.) | .45 | .27 | .31 | .11 | .04 | .03 | .2 | .59 | .27 | .28 | .16 | .42 | 3.12 |