Dolores, Colorado has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 33.1 °F (low) to 60.8 °F (high). Annual precipitation averages 17.2 Inches. Dolores is located in USDA Plant Hardiness Zone 6b. 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 | 15.2 °F | 39.5 °F | 1.69 in. |
| February | 18.6 °F | 42.3 °F | 1.59 in. |
| March | 25.0 °F | 50.7 °F | 1.58 in. |
| April | 30.5 °F | 58.1 °F | 1.24 in. |
| May | 37.9 °F | 67.9 °F | 1.3 in. |
| June | 46.5 °F | 79.4 °F | 0.55 in. |
| July | 52.7 °F | 84.4 °F | 1.21 in. |
| August | 52.1 °F | 81.8 °F | 1.71 in. |
| September | 44.6 °F | 74.2 °F | 1.9 in. |
| October | 34.1 °F | 62.1 °F | 1.62 in. |
| November | 24.2 °F | 50.0 °F | 1.38 in. |
| December | 16.3 °F | 39.5 °F | 1.47 in. |
| Annual | 33.1 °F | 60.8 °F | 17.24 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |