Winnemucca, Nevada has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 1.2 °C (low) to 18.9 °C (high). Annual precipitation averages 211.6 Millimeters. Winnemucca is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Jun. 1 - Jun. 10 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -7.1 °C | 5.7 °C | 21.34 mm |
| February | -5.1 °C | 8.9 °C | 18.8 mm |
| March | -2.6 °C | 13.3 °C | 18.29 mm |
| April | -0.1 °C | 16.6 °C | 25.65 mm |
| May | 4.2 °C | 22 °C | 30.99 mm |
| June | 8.2 °C | 27.8 °C | 14.73 mm |
| July | 12.4 °C | 34 °C | 4.83 mm |
| August | 10.6 °C | 33.2 °C | 4.06 mm |
| September | 5.8 °C | 27.9 °C | 8.38 mm |
| October | -0.2 °C | 19.9 °C | 19.81 mm |
| November | -4.4 °C | 11.6 °C | 19.05 mm |
| December | -7.5 °C | 5.3 °C | 25.65 mm |
| Annual | 1.2 °C | 18.9 °C | 211.58 mm |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | Jun. 1 - Jun. 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 6b : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |