Blanding, Utah has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 3.8 °C (low) to 18 °C (high). Annual precipitation averages 335.5 Millimeters. Blanding is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -6.6 °C | 4.6 °C | 38.35 mm |
| February | -4.5 °C | 7.3 °C | 35.05 mm |
| March | -1.1 °C | 12.7 °C | 26.16 mm |
| April | 1.8 °C | 16.9 °C | 19.81 mm |
| May | 6.5 °C | 22.4 °C | 21.59 mm |
| June | 12.1 °C | 29.3 °C | 9.14 mm |
| July | 15.7 °C | 31.9 °C | 26.16 mm |
| August | 14.9 °C | 30.4 °C | 32.26 mm |
| September | 10.6 °C | 26 °C | 35.81 mm |
| October | 4.1 °C | 18.7 °C | 34.8 mm |
| November | -1.9 °C | 11 °C | 23.37 mm |
| December | -6.2 °C | 4.8 °C | 33.02 mm |
| Annual | 3.8 °C | 18 °C | 335.52 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 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 |