Trinidad, Colorado has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 35.9 °F (low) to 67 °F (high). Annual precipitation averages 14.9 Inches. Trinidad is located in USDA Plant Hardiness Zone 6a. 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 | 17.6 °F | 47.9 °F | 0.46 in. |
| February | 19.8 °F | 50.3 °F | 0.51 in. |
| March | 26.4 °F | 57.9 °F | 1.0 in. |
| April | 33.2 °F | 64.4 °F | 1.26 in. |
| May | 42.5 °F | 73.5 °F | 1.63 in. |
| June | 52.0 °F | 84.1 °F | 1.31 in. |
| July | 56.8 °F | 87.7 °F | 2.67 in. |
| August | 55.2 °F | 85.4 °F | 2.44 in. |
| September | 47.9 °F | 79.6 °F | 1.29 in. |
| October | 35.8 °F | 68.7 °F | 1.06 in. |
| November | 25.6 °F | 56.5 °F | 0.67 in. |
| December | 17.7 °F | 47.6 °F | 0.59 in. |
| Annual | 35.9 °F | 67 °F | 14.89 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |