White Mesa, Utah has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 5 °C (low) to 19.8 °C (high). Annual precipitation averages 243.1 Millimeters. White Mesa is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -5.8 °C | 5.5 °C | 26.92 mm |
| February | -3.4 °C | 9.2 °C | 24.89 mm |
| March | 0.1 °C | 14.7 °C | 18.8 mm |
| April | 3.2 °C | 18.9 °C | 14.48 mm |
| May | 8.1 °C | 24.5 °C | 16.76 mm |
| June | 13.7 °C | 31.4 °C | 7.11 mm |
| July | 17.2 °C | 34 °C | 19.56 mm |
| August | 16.4 °C | 32.4 °C | 22.61 mm |
| September | 11.8 °C | 27.9 °C | 27.43 mm |
| October | 5.1 °C | 20.5 °C | 25.15 mm |
| November | -1.2 °C | 12.4 °C | 17.27 mm |
| December | -5.5 °C | 5.9 °C | 22.1 mm |
| Annual | 5 °C | 19.8 °C | 243.08 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 7b : -15°C to -12.2°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 |