Hildale, Utah has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 4.4 °C (low) to 21.2 °C (high). Annual precipitation averages 336.8 Millimeters. Hildale is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -4.9 °C | 9 °C | 35.56 mm |
| February | -3.3 °C | 11.1 °C | 46.48 mm |
| March | -0.4 °C | 15.2 °C | 38.61 mm |
| April | 2.2 °C | 19.6 °C | 24.64 mm |
| May | 6.6 °C | 25.2 °C | 15.75 mm |
| June | 11.8 °C | 31.4 °C | 8.13 mm |
| July | 15.9 °C | 34.4 °C | 28.96 mm |
| August | 15.1 °C | 33.2 °C | 34.8 mm |
| September | 11.1 °C | 29.2 °C | 24.13 mm |
| October | 4.6 °C | 22.4 °C | 29.21 mm |
| November | -1.1 °C | 14.7 °C | 21.84 mm |
| December | -5.1 °C | 8.7 °C | 28.7 mm |
| Annual | 4.4 °C | 21.2 °C | 336.81 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |