Red Cliff, Colorado has a Subarctic With Cool Summers And Year Around Rainfall climate (Köppen classification: Dfc). Average annual temperatures range from -5.2 °C (low) to 11.1 °C (high). Annual precipitation averages 644.2 Millimeters. Red Cliff is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around Jun. 11 - Jun. 20 through the first frost around Sep.1 - Sep. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -14.9 °C | -0.7 °C | 60.45 mm |
| February | -13.8 °C | 0.9 °C | 59.18 mm |
| March | -10 °C | 5.3 °C | 61.72 mm |
| April | -5.8 °C | 9.2 °C | 75.95 mm |
| May | -1.6 °C | 14.7 °C | 52.07 mm |
| June | 1.8 °C | 21.3 °C | 30.23 mm |
| July | 5.3 °C | 24.4 °C | 45.47 mm |
| August | 4.5 °C | 23.1 °C | 48.51 mm |
| September | 0.8 °C | 19.1 °C | 50.55 mm |
| October | -4.2 °C | 12 °C | 50.04 mm |
| November | -9.9 °C | 4.6 °C | 57.4 mm |
| December | -14.6 °C | -0.7 °C | 52.58 mm |
| Annual | -5.2 °C | 11.1 °C | 644.15 mm |
| Average First Frost Date | Sep.1 - Sep. 10 |
| Average Last Frost Date | Jun. 11 - Jun. 20 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 5a : -28.9°C to -26.1°C |
| Plant Hardiness Zone - 2012 | Zone 4b : -31.7°C to -28.9°C |
| Current Drought Conditions | Exceptional Drought |
| Köppen Climate Classification | Dfc - Subarctic With Cool Summers And Year Around Rainfall |