Haxtun, Colorado has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 35.4 °F (low) to 63.9 °F (high). Annual precipitation averages 17 Inches. Haxtun is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 15.5 °F | 41.6 °F | 0.32 in. |
| February | 16.8 °F | 43.6 °F | 0.43 in. |
| March | 24.7 °F | 53.9 °F | 0.91 in. |
| April | 32.3 °F | 61.1 °F | 1.82 in. |
| May | 43.2 °F | 70.3 °F | 2.7 in. |
| June | 53.7 °F | 82.7 °F | 2.58 in. |
| July | 59.6 °F | 89.2 °F | 2.37 in. |
| August | 57.0 °F | 86.7 °F | 2.39 in. |
| September | 47.8 °F | 79.1 °F | 1.42 in. |
| October | 34.7 °F | 64.8 °F | 1.21 in. |
| November | 24.1 °F | 52.3 °F | 0.49 in. |
| December | 15.6 °F | 41.6 °F | 0.38 in. |
| Annual | 35.4 °F | 63.9 °F | 17.02 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |