Mountain City, Nevada has a Cold Desert Climate climate (Köppen classification: BWk). Average annual temperatures range from 28.7 °F (low) to 59.4 °F (high). Annual precipitation averages 13.3 Inches. Mountain City is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around Jun. 1 - Jun. 10 through the first frost around Aug. 21 - Aug. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 14.2 °F | 38.1 °F | 1.22 in. |
| February | 16.7 °F | 40.8 °F | 0.99 in. |
| March | 22.2 °F | 47.8 °F | 1.12 in. |
| April | 27.2 °F | 54.3 °F | 1.56 in. |
| May | 34.1 °F | 64.0 °F | 2.04 in. |
| June | 40.3 °F | 74.5 °F | 0.91 in. |
| July | 46.3 °F | 85.4 °F | 0.51 in. |
| August | 44.1 °F | 84.9 °F | 0.57 in. |
| September | 37.7 °F | 75.2 °F | 0.74 in. |
| October | 27.2 °F | 62.0 °F | 0.98 in. |
| November | 20.4 °F | 47.4 °F | 1.22 in. |
| December | 14.2 °F | 38.4 °F | 1.41 in. |
| Annual | 28.7 °F | 59.4 °F | 13.27 in. |
| Average First Frost Date | Aug. 21 - Aug. 31 |
| Average Last Frost Date | Jun. 1 - Jun. 10 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Exceptional Drought |
| Köppen Climate Classification | BWk - Cold Desert Climate |