Swink, Colorado has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 37 °F (low) to 70.1 °F (high). Annual precipitation averages 12.7 Inches. Swink is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 14.7 °F | 47.4 °F | 0.36 in. |
| February | 18.4 °F | 50.8 °F | 0.38 in. |
| March | 26.6 °F | 61.4 °F | 0.81 in. |
| April | 35.2 °F | 68.6 °F | 1.33 in. |
| May | 45.9 °F | 78.0 °F | 1.65 in. |
| June | 56.6 °F | 89.2 °F | 1.48 in. |
| July | 61.4 °F | 93.5 °F | 2.19 in. |
| August | 59.6 °F | 91.2 °F | 1.82 in. |
| September | 50.2 °F | 84.2 °F | 0.78 in. |
| October | 35.9 °F | 71.5 °F | 1.08 in. |
| November | 24.0 °F | 58.0 °F | 0.42 in. |
| December | 15.4 °F | 47.4 °F | 0.41 in. |
| Annual | 37 °F | 70.1 °F | 12.71 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |