| 2023 Hardiness Zone: | Zone 9a: 20°F to 25°F Zone 9b: 25°F to 30°F | |
| 2012 Hardiness Zone: | Zone 9a: 20°F to 25°F Zone 9b: 25°F to 30°F | |
| 1990 Hardiness Zone: | Zone 9a: 20F to 25F | |
| Average First Frost Date: | Dec. 1 - Dec. 10 | |
| Average Last Frost Date: | Feb. 21 - Feb. 29 | |
| Koppen-Geiger Climate Zone: | BSk - Cold Semi-Arid Climate | |
| Ecoregion: | ||
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 121 - 150 days Over 86°F |
Annual Climate Data for ZIP Code 93230 - Hanford, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 36 | 39 | 43 | 47 | 54 | 59 | 63 | 62 | 58 | 49 | 40 | 34 | 49 |
| Avg Max Temp (°F) | 54 | 62 | 67 | 75 | 83 | 91 | 96 | 95 | 89 | 80 | 65 | 54 | 76 |
| Avg Precip (In.) | 1.71 | 1.64 | 1.77 | .63 | .27 | .09 | .01 | .01 | .25 | .44 | .84 | 1.07 | 8.73 |