Gleneagle, Colorado has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 32.6 °F (low) to 60.7 °F (high). Annual precipitation averages 18.7 Inches. Gleneagle is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 15.6 °F | 42.5 °F | 0.5 in. |
| February | 17.0 °F | 43.3 °F | 0.59 in. |
| March | 23.2 °F | 51.0 °F | 1.33 in. |
| April | 29.4 °F | 56.7 °F | 2.37 in. |
| May | 38.3 °F | 65.8 °F | 2.62 in. |
| June | 47.4 °F | 77.6 °F | 1.55 in. |
| July | 53.4 °F | 82.9 °F | 2.54 in. |
| August | 52.1 °F | 80.4 °F | 3.55 in. |
| September | 44.0 °F | 73.9 °F | 1.61 in. |
| October | 32.8 °F | 61.8 °F | 0.88 in. |
| November | 22.7 °F | 50.3 °F | 0.66 in. |
| December | 15.7 °F | 42.2 °F | 0.48 in. |
| Annual | 32.6 °F | 60.7 °F | 18.68 in. |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |