McDermitt, Nevada has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Annual precipitation averages 202.4 Millimeters. McDermitt is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Jun. 1 - Jun. 10 through the first frost around Sep.1 - Sep. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -7.7 °C | 4.6 °C | 18.8 mm |
| February | -5.8 °C | 7.7 °C | 13.46 mm |
| March | -3.2 °C | 11.9 °C | 16.76 mm |
| April | -1.1 °C | 15.6 °C | 25.65 mm |
| May | 3 °C | 21.2 °C | 30.73 mm |
| June | 6.7 °C | 26.7 °C | 22.86 mm |
| July | 10.4 °C | 32.9 °C | 7.62 mm |
| August | 8.7 °C | 32.2 °C | 4.32 mm |
| September | 4.1 °C | 27 °C | 10.92 mm |
| October | -1.7 °C | 19 °C | 16.76 mm |
| November | -5.1 °C | 10.4 °C | 13.97 mm |
| December | -7.9 °C | 4.3 °C | 20.57 mm |
| Annual | 0 °C | 17.8 °C | 202.42 mm |
| Average First Frost Date | Sep.1 - Sep. 10 |
| Average Last Frost Date | Jun. 1 - Jun. 10 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |