Cathedral, Colorado has a Subarctic With Cool Summers And Year Around Rainfall climate (Köppen classification: Dfc). Average annual temperatures range from -6 °C (low) to 12.7 °C (high). Annual precipitation averages 384.3 Millimeters. Cathedral is located in USDA Plant Hardiness Zone 4b. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep.1 - Sep. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -18.1 °C | 1.4 °C | 26.92 mm |
| February | -16.1 °C | 3.2 °C | 26.16 mm |
| March | -10.7 °C | 7.4 °C | 26.42 mm |
| April | -6.1 °C | 10.8 °C | 33.27 mm |
| May | -1.8 °C | 16.4 °C | 32.77 mm |
| June | 2.1 °C | 22.6 °C | 17.78 mm |
| July | 5.7 °C | 24.7 °C | 51.31 mm |
| August | 5.3 °C | 23.4 °C | 55.88 mm |
| September | 1.2 °C | 20.2 °C | 35.31 mm |
| October | -4.4 °C | 14.1 °C | 30.23 mm |
| November | -11.1 °C | 7.2 °C | 23.37 mm |
| December | -17.4 °C | 1.1 °C | 24.89 mm |
| Annual | -6 °C | 12.7 °C | 384.31 mm |
| Average First Frost Date | Sep.1 - Sep. 10 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 4b : -31.7°C to -28.9°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 |