Tohatchi, New Mexico has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 37.4 °F (low) to 66.6 °F (high). Annual precipitation averages 10.5 Inches. 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 | 19.5 °F | 44.2 °F | 0.73 in. |
| February | 23.1 °F | 49.6 °F | 0.57 in. |
| March | 27.2 °F | 57.1 °F | 0.64 in. |
| April | 34.1 °F | 65.6 °F | 0.38 in. |
| May | 43.1 °F | 74.0 °F | 0.66 in. |
| June | 51.6 °F | 85.6 °F | 0.38 in. |
| July | 58.4 °F | 88.4 °F | 1.63 in. |
| August | 57.0 °F | 85.8 °F | 2.04 in. |
| September | 49.8 °F | 80.0 °F | 1.29 in. |
| October | 38.0 °F | 68.8 °F | 0.93 in. |
| November | 27.5 °F | 54.7 °F | 0.57 in. |
| December | 19.5 °F | 44.8 °F | 0.72 in. |
| Annual | 37.4 °F | 66.6 °F | 10.54 in. |
| 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 : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |