Copper Mountain, Colorado has a Subarctic With Cool Summers And Year Around Rainfall climate (Köppen classification: Dfc). Average annual temperatures range from -5.3 °C (low) to 10 °C (high). Annual precipitation averages 657.9 Millimeters. Copper Mountain is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around Jun. 21 - Jun. 30 through the first frost around Aug. 1 - Aug. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -14.2 °C | -0.7 °C | 61.98 mm |
| February | -13.9 °C | 0.1 °C | 62.48 mm |
| March | -10.2 °C | 4.2 °C | 67.31 mm |
| April | -6.5 °C | 7.7 °C | 79.76 mm |
| May | -2 °C | 13.4 °C | 58.67 mm |
| June | 1.6 °C | 19.5 °C | 29.21 mm |
| July | 5.4 °C | 22.4 °C | 48.26 mm |
| August | 4.2 °C | 21.1 °C | 55.88 mm |
| September | 0.7 °C | 17.5 °C | 41.4 mm |
| October | -4.2 °C | 10.9 °C | 44.2 mm |
| November | -10.1 °C | 4.4 °C | 54.1 mm |
| December | -14.6 °C | -0.8 °C | 54.61 mm |
| Annual | -5.3 °C | 10 °C | 657.86 mm |
| Average First Frost Date | Aug. 1 - Aug. 10 |
| Average Last Frost Date | Jun. 21 - Jun. 30 |
| 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 |