Ouray, Colorado has a Subarctic With Cool Summers And Year Around Rainfall climate (Köppen classification: Dfc). Average annual temperatures range from 29.1 °F (low) to 56.9 °F (high). Annual precipitation averages 23.3 Inches. Ouray is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep.1 - Sep. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 11.4 °F | 36.6 °F | 1.68 in. |
| February | 13.9 °F | 39.3 °F | 1.83 in. |
| March | 20.6 °F | 47.1 °F | 2.36 in. |
| April | 27.1 °F | 53.8 °F | 2.46 in. |
| May | 35.0 °F | 63.7 °F | 1.75 in. |
| June | 42.3 °F | 75.1 °F | 0.88 in. |
| July | 48.3 °F | 78.7 °F | 2.32 in. |
| August | 47.5 °F | 76.1 °F | 2.44 in. |
| September | 40.7 °F | 70.2 °F | 2.12 in. |
| October | 30.4 °F | 58.9 °F | 2.03 in. |
| November | 20.2 °F | 46.4 °F | 1.79 in. |
| December | 11.9 °F | 36.3 °F | 1.67 in. |
| Annual | 29.1 °F | 56.9 °F | 23.33 in. |
| Average First Frost Date | Sep.1 - Sep. 10 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfc - Subarctic With Cool Summers And Year Around Rainfall |