Wilhoit, Arizona has a Hot-Summer Mediterranean Climate climate (Köppen classification: Csa). Average annual temperatures range from 5.9 °C (low) to 22 °C (high). Annual precipitation averages 480.8 Millimeters. Wilhoit is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -2.1 °C | 12.3 °C | 52.58 mm |
| February | -1.4 °C | 13.4 °C | 57.15 mm |
| March | 0.7 °C | 16.6 °C | 53.09 mm |
| April | 3.2 °C | 20.5 °C | 19.56 mm |
| May | 7.4 °C | 25.1 °C | 9.14 mm |
| June | 12.2 °C | 31 °C | 5.33 mm |
| July | 16.2 °C | 32.6 °C | 57.91 mm |
| August | 15.9 °C | 31.3 °C | 83.06 mm |
| September | 12.7 °C | 28.7 °C | 43.69 mm |
| October | 6.8 °C | 23.4 °C | 24.13 mm |
| November | 1.4 °C | 17.1 °C | 26.67 mm |
| December | -2.1 °C | 11.8 °C | 48.51 mm |
| Annual | 5.9 °C | 22 °C | 480.82 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 8a : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Csa - Hot-Summer Mediterranean Climate |