McDermitt, Nevada has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 32.1 °F (low) to 64 °F (high). Annual precipitation averages 8 Inches. 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 | 18.2 °F | 40.3 °F | 0.74 in. |
| February | 21.6 °F | 45.8 °F | 0.53 in. |
| March | 26.2 °F | 53.4 °F | 0.66 in. |
| April | 30.1 °F | 60.1 °F | 1.01 in. |
| May | 37.4 °F | 70.1 °F | 1.21 in. |
| June | 44.0 °F | 80.0 °F | 0.9 in. |
| July | 50.8 °F | 91.2 °F | 0.3 in. |
| August | 47.6 °F | 89.9 °F | 0.17 in. |
| September | 39.3 °F | 80.6 °F | 0.43 in. |
| October | 29.0 °F | 66.2 °F | 0.66 in. |
| November | 22.8 °F | 50.8 °F | 0.55 in. |
| December | 17.7 °F | 39.7 °F | 0.81 in. |
| Annual | 32.1 °F | 64 °F | 7.97 in. |
| 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 : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |