Owyhee, Nevada has a Cold Desert Climate climate (Köppen classification: BWk). Average annual temperatures range from 31 °F (low) to 59.9 °F (high). Annual precipitation averages 15.3 Inches. Owyhee is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 16.4 °F | 38.4 °F | 1.45 in. |
| February | 18.9 °F | 41.5 °F | 1.07 in. |
| March | 24.4 °F | 48.5 °F | 1.66 in. |
| April | 28.8 °F | 55.3 °F | 2.16 in. |
| May | 36.1 °F | 64.4 °F | 2.06 in. |
| June | 42.5 °F | 74.7 °F | 1.21 in. |
| July | 49.1 °F | 86.3 °F | 0.48 in. |
| August | 47.1 °F | 85.5 °F | 0.46 in. |
| September | 39.9 °F | 75.8 °F | 0.74 in. |
| October | 29.3 °F | 62.1 °F | 1.22 in. |
| November | 22.4 °F | 48.0 °F | 1.23 in. |
| December | 16.5 °F | 38.7 °F | 1.53 in. |
| Annual | 31 °F | 59.9 °F | 15.27 in. |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 21 - May 31 |
| 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 | Exceptional Drought |
| Köppen Climate Classification | BWk - Cold Desert Climate |