Wiggins, Colorado has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 0.7 °C (low) to 18.2 °C (high). Annual precipitation averages 396.8 Millimeters. Wiggins is located in USDA Plant Hardiness Zone 5a. 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 | -11.2 °C | 5.1 °C | 10.16 mm |
| February | -9.7 °C | 7.1 °C | 9.91 mm |
| March | -4.6 °C | 13.2 °C | 19.81 mm |
| April | -0.4 °C | 16.9 °C | 41.91 mm |
| May | 5.7 °C | 22.1 °C | 61.47 mm |
| June | 11.1 °C | 28.7 °C | 60.96 mm |
| July | 14.1 °C | 32 °C | 56.64 mm |
| August | 12.8 °C | 30.8 °C | 48.77 mm |
| September | 7.7 °C | 26.7 °C | 31.5 mm |
| October | 0.1 °C | 19.2 °C | 28.7 mm |
| November | -6.2 °C | 11.1 °C | 15.24 mm |
| December | -11.1 °C | 5.2 °C | 11.68 mm |
| Annual | 0.7 °C | 18.2 °C | 396.75 mm |
| 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 5a : -28.9°C to -26.1°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |