Hugo, Colorado has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 0.9 °C (low) to 18.4 °C (high). Annual precipitation averages 367.3 Millimeters. Hugo is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -10.2 °C | 6.7 °C | 4.32 mm |
| February | -9.1 °C | 7.7 °C | 7.62 mm |
| March | -4.8 °C | 13 °C | 15.49 mm |
| April | -0.7 °C | 17.1 °C | 30.73 mm |
| May | 5.2 °C | 22.2 °C | 50.55 mm |
| June | 10.8 °C | 28.5 °C | 60.71 mm |
| July | 14 °C | 31.7 °C | 71.63 mm |
| August | 13.1 °C | 30.3 °C | 62.99 mm |
| September | 7.9 °C | 26.4 °C | 25.15 mm |
| October | 0.6 °C | 19.1 °C | 24.89 mm |
| November | -5.7 °C | 11.7 °C | 7.37 mm |
| December | -9.9 °C | 6.3 °C | 5.84 mm |
| Annual | 0.9 °C | 18.4 °C | 367.29 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |