Fernley, Nevada has a Cold Desert Climate climate (Köppen classification: BWk). Average annual temperatures range from 38.8 °F (low) to 68.4 °F (high). Annual precipitation averages 5.9 Inches. Fernley is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 23.6 °F | 46.1 °F | 0.81 in. |
| February | 26.2 °F | 51.0 °F | 0.68 in. |
| March | 30.9 °F | 59.1 °F | 0.65 in. |
| April | 35.5 °F | 65.3 °F | 0.4 in. |
| May | 44.3 °F | 74.0 °F | 0.74 in. |
| June | 51.7 °F | 84.5 °F | 0.4 in. |
| July | 59.2 °F | 93.7 °F | 0.26 in. |
| August | 57.4 °F | 92.3 °F | 0.17 in. |
| September | 49.0 °F | 83.5 °F | 0.22 in. |
| October | 37.5 °F | 70.1 °F | 0.43 in. |
| November | 28.2 °F | 55.8 °F | 0.48 in. |
| December | 22.4 °F | 45.4 °F | 0.66 in. |
| Annual | 38.8 °F | 68.4 °F | 5.9 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | BWk - Cold Desert Climate |