Del Norte, Colorado has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from -3 °C (low) to 14.3 °C (high). Annual precipitation averages 261.4 Millimeters. Del Norte is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -15.7 °C | 0.6 °C | 10.41 mm |
| February | -12.6 °C | 3.6 °C | 10.41 mm |
| March | -7.1 °C | 9.8 °C | 21.08 mm |
| April | -3.3 °C | 14.1 °C | 19.56 mm |
| May | 1.3 °C | 18.9 °C | 19.05 mm |
| June | 5.7 °C | 24.6 °C | 13.46 mm |
| July | 8.8 °C | 26.3 °C | 43.18 mm |
| August | 8.1 °C | 25.2 °C | 46.48 mm |
| September | 3.9 °C | 22.2 °C | 29.97 mm |
| October | -2.2 °C | 16.2 °C | 19.05 mm |
| November | -8.6 °C | 8.4 °C | 13.97 mm |
| December | -14.7 °C | 1.4 °C | 14.73 mm |
| Annual | -3 °C | 14.3 °C | 261.35 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |