Telluride, Colorado has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -4.2 °C (low) to 12.4 °C (high). Annual precipitation averages 626.4 Millimeters. Telluride is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around Jun. 1 - Jun. 10 through the first frost around Aug. 21 - Aug. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -14.5 °C | 1.8 °C | 50.29 mm |
| February | -13.3 °C | 3.3 °C | 51.31 mm |
| March | -9.2 °C | 7.2 °C | 53.34 mm |
| April | -4.8 °C | 10.4 °C | 50.29 mm |
| May | -0.5 °C | 15.7 °C | 47.24 mm |
| June | 3.4 °C | 21.9 °C | 24.64 mm |
| July | 6.7 °C | 24.3 °C | 64.52 mm |
| August | 6.3 °C | 22.8 °C | 72.9 mm |
| September | 2.4 °C | 19.4 °C | 71.12 mm |
| October | -3 °C | 13.6 °C | 50.55 mm |
| November | -9.1 °C | 6.9 °C | 46.99 mm |
| December | -14.8 °C | 1.5 °C | 43.18 mm |
| Annual | -4.2 °C | 12.4 °C | 626.37 mm |
| Average First Frost Date | Aug. 21 - Aug. 31 |
| Average Last Frost Date | Jun. 1 - Jun. 10 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 5a : -28.9°C to -26.1°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |