Tonopah, Nevada has a Cold Desert Climate climate (Köppen classification: BWk). Average annual temperatures range from 4.7 °C (low) to 17.4 °C (high). Annual precipitation averages 151.9 Millimeters. Tonopah is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -4 °C | 5.3 °C | 12.95 mm |
| February | -3 °C | 7.3 °C | 12.45 mm |
| March | -0.6 °C | 11.9 °C | 18.8 mm |
| April | 1.7 °C | 15.4 °C | 16.26 mm |
| May | 6.4 °C | 20.7 °C | 18.29 mm |
| June | 11.4 °C | 26.9 °C | 8.64 mm |
| July | 16.3 °C | 30.9 °C | 11.68 mm |
| August | 15.7 °C | 30.2 °C | 12.19 mm |
| September | 11.6 °C | 25.6 °C | 10.41 mm |
| October | 5.4 °C | 18.4 °C | 12.19 mm |
| November | -0.3 °C | 10.6 °C | 8.89 mm |
| December | -4.7 °C | 5 °C | 9.14 mm |
| Annual | 4.7 °C | 17.4 °C | 151.89 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | BWk - Cold Desert Climate |