Ridgway, Colorado has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 29.2 °F (low) to 60.8 °F (high). Annual precipitation averages 15.9 Inches. Ridgway is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around Jun. 1 - Jun. 10 through the first frost around Sep.1 - Sep. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 10.0 °F | 38.2 °F | 0.96 in. |
| February | 14.7 °F | 42.2 °F | 0.95 in. |
| March | 22.0 °F | 51.2 °F | 1.33 in. |
| April | 28.4 °F | 58.2 °F | 1.46 in. |
| May | 35.6 °F | 68.5 °F | 1.47 in. |
| June | 42.7 °F | 80.1 °F | 0.82 in. |
| July | 49.4 °F | 84.3 °F | 1.81 in. |
| August | 48.1 °F | 81.6 °F | 2.05 in. |
| September | 40.2 °F | 74.9 °F | 1.51 in. |
| October | 29.4 °F | 63.1 °F | 1.24 in. |
| November | 19.8 °F | 49.6 °F | 1.18 in. |
| December | 10.2 °F | 38.0 °F | 1.09 in. |
| Annual | 29.2 °F | 60.8 °F | 15.87 in. |
| Average First Frost Date | Sep.1 - Sep. 10 |
| Average Last Frost Date | Jun. 1 - Jun. 10 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |