Aneth, Utah has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 5.2 °C (low) to 21.9 °C (high). Annual precipitation averages 187.2 Millimeters. Aneth is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -6.1 °C | 7.1 °C | 20.32 mm |
| February | -3.4 °C | 11.3 °C | 18.54 mm |
| March | 0.3 °C | 17.2 °C | 14.73 mm |
| April | 4.2 °C | 21.6 °C | 10.92 mm |
| May | 9.2 °C | 27.1 °C | 11.94 mm |
| June | 14.2 °C | 33.7 °C | 5.33 mm |
| July | 18.4 °C | 36.2 °C | 15.49 mm |
| August | 17.2 °C | 34.6 °C | 16.76 mm |
| September | 12.2 °C | 29.9 °C | 23.37 mm |
| October | 4.6 °C | 22.5 °C | 20.07 mm |
| November | -1.9 °C | 14.1 °C | 13.97 mm |
| December | -6.1 °C | 7.2 °C | 15.75 mm |
| Annual | 5.2 °C | 21.9 °C | 187.19 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| 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 |