Sun Valley, Nevada has a Cold Desert Climate climate (Köppen classification: BWk). Average annual temperatures range from 3.2 °C (low) to 18.8 °C (high). Annual precipitation averages 232.2 Millimeters. Sun Valley is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -4.6 °C | 7.3 °C | 39.62 mm |
| February | -3.3 °C | 9.6 °C | 29.72 mm |
| March | -0.9 °C | 13.2 °C | 25.91 mm |
| April | 1.3 °C | 16.3 °C | 13.97 mm |
| May | 5.3 °C | 21.3 °C | 17.27 mm |
| June | 9.4 °C | 27.1 °C | 13.46 mm |
| July | 13.4 °C | 32.3 °C | 6.1 mm |
| August | 12.6 °C | 31.7 °C | 7.37 mm |
| September | 8.6 °C | 27.3 °C | 5.08 mm |
| October | 3 °C | 20.2 °C | 16.51 mm |
| November | -1.9 °C | 12.6 °C | 19.56 mm |
| December | -4.8 °C | 7.1 °C | 37.59 mm |
| Annual | 3.2 °C | 18.8 °C | 232.16 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| 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 | Abnormally Dry |
| Köppen Climate Classification | BWk - Cold Desert Climate |