Wales, Utah has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from -0.4 °C (low) to 16.9 °C (high). Annual precipitation averages 292.6 Millimeters. Wales is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -10.8 °C | 2.7 °C | 26.42 mm |
| February | -7.9 °C | 5.6 °C | 27.69 mm |
| March | -3.9 °C | 11.3 °C | 26.42 mm |
| April | -1.3 °C | 15.3 °C | 28.7 mm |
| May | 2.6 °C | 20.7 °C | 28.45 mm |
| June | 6.9 °C | 27.4 °C | 18.8 mm |
| July | 11.2 °C | 31.7 °C | 16.26 mm |
| August | 10.4 °C | 30.6 °C | 18.54 mm |
| September | 5.2 °C | 25.8 °C | 25.15 mm |
| October | -0.7 °C | 18.2 °C | 26.67 mm |
| November | -6 °C | 10.1 °C | 22.1 mm |
| December | -10.5 °C | 2.9 °C | 27.43 mm |
| Annual | -0.4 °C | 16.9 °C | 292.63 mm |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |