Cheyenne Wells, Colorado has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 2.7 °C (low) to 19.3 °C (high). Annual precipitation averages 413.8 Millimeters. Cheyenne Wells 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 | -8.6 °C | 7 °C | 6.1 mm |
| February | -7.5 °C | 8.2 °C | 9.4 mm |
| March | -3.4 °C | 13.7 °C | 17.53 mm |
| April | 0.9 °C | 18.2 °C | 33.53 mm |
| May | 6.8 °C | 23.5 °C | 55.12 mm |
| June | 12.6 °C | 29.9 °C | 64.26 mm |
| July | 15.8 °C | 33.1 °C | 73.15 mm |
| August | 14.7 °C | 31.5 °C | 73.41 mm |
| September | 10.1 °C | 27.6 °C | 31.24 mm |
| October | 2.8 °C | 20.1 °C | 30.23 mm |
| November | -3.7 °C | 12.3 °C | 11.94 mm |
| December | -8.2 °C | 6.9 °C | 7.87 mm |
| Annual | 2.7 °C | 19.3 °C | 413.78 mm |
| 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 : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |