Tohatchi, New Mexico has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 3 °C (low) to 19.2 °C (high). Annual precipitation averages 267.7 Millimeters. Tohatchi is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -6.9 °C | 6.8 °C | 18.54 mm |
| February | -4.9 °C | 9.8 °C | 14.48 mm |
| March | -2.7 °C | 13.9 °C | 16.26 mm |
| April | 1.2 °C | 18.7 °C | 9.65 mm |
| May | 6.2 °C | 23.3 °C | 16.76 mm |
| June | 10.9 °C | 29.8 °C | 9.65 mm |
| July | 14.7 °C | 31.3 °C | 41.4 mm |
| August | 13.9 °C | 29.9 °C | 51.82 mm |
| September | 9.9 °C | 26.7 °C | 32.77 mm |
| October | 3.3 °C | 20.4 °C | 23.62 mm |
| November | -2.5 °C | 12.6 °C | 14.48 mm |
| December | -6.9 °C | 7.1 °C | 18.29 mm |
| Annual | 3 °C | 19.2 °C | 267.72 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |