| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°F Zone 8b: 15°F to 20°F Zone 8a: 10°F to 15°F Zone 5b: -15°F to -10°F | |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°F Zone 8b: 15°F to 20°F Zone 8a: 10°F to 15°F Zone 5b: -15°F to -10°F | |
| 1990 Hardiness Zone: | Zone 7a: 0F to 5F | |
| Average First Frost Date: | Oct. 11 - Oct. 20 | |
| Average Last Frost Date: | May 21 - May 31 | |
| Koppen-Geiger Climate Zone: | Csb - Warm-Summer Mediterranean Climate | |
| Ecoregion: | ||
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 86046 - Williams, AZ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 20 | 23 | 26 | 31 | 38 | 47 | 53 | 52 | 46 | 36 | 26 | 21 | 35 |
| Avg Max Temp (°F) | 46 | 49 | 53 | 61 | 69 | 80 | 83 | 80 | 75 | 65 | 54 | 47 | 63 |
| Avg Precip (In.) | 1.92 | 2.1 | 2.21 | .98 | .82 | .45 | 2.35 | 2.78 | 1.77 | 1.65 | 1.61 | 1.52 | 20.16 |