Black Forest, Colorado has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 31.7 °F (low) to 59.3 °F (high). Annual precipitation averages 21.7 Inches. Black Forest is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 15.9 °F | 42.1 °F | 0.62 in. |
| February | 16.6 °F | 42.5 °F | 0.84 in. |
| March | 22.4 °F | 49.6 °F | 1.5 in. |
| April | 27.8 °F | 55.3 °F | 2.69 in. |
| May | 36.8 °F | 64.0 °F | 2.5 in. |
| June | 46.1 °F | 75.7 °F | 2.26 in. |
| July | 52.6 °F | 80.8 °F | 3.3 in. |
| August | 51.0 °F | 78.5 °F | 3.55 in. |
| September | 42.5 °F | 72.2 °F | 1.68 in. |
| October | 31.7 °F | 60.4 °F | 1.14 in. |
| November | 22.0 °F | 49.4 °F | 0.94 in. |
| December | 15.5 °F | 41.6 °F | 0.7 in. |
| Annual | 31.7 °F | 59.3 °F | 21.72 in. |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | 150-180 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 |