Del Norte, Colorado has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 26.5 °F (low) to 57.7 °F (high). Annual precipitation averages 10.3 Inches. 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 | 3.7 °F | 33.1 °F | 0.41 in. |
| February | 9.3 °F | 38.5 °F | 0.41 in. |
| March | 19.3 °F | 49.6 °F | 0.83 in. |
| April | 26.0 °F | 57.3 °F | 0.77 in. |
| May | 34.4 °F | 66.1 °F | 0.75 in. |
| June | 42.2 °F | 76.2 °F | 0.53 in. |
| July | 47.9 °F | 79.3 °F | 1.7 in. |
| August | 46.5 °F | 77.3 °F | 1.83 in. |
| September | 39.1 °F | 72.0 °F | 1.18 in. |
| October | 28.1 °F | 61.1 °F | 0.75 in. |
| November | 16.5 °F | 47.2 °F | 0.55 in. |
| December | 5.5 °F | 34.5 °F | 0.58 in. |
| Annual | 26.5 °F | 57.7 °F | 10.29 in. |
| 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 : -15°F to -10°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 |