Crook, Colorado has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 34.9 °F (low) to 66 °F (high). Annual precipitation averages 16.7 Inches. Crook is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 14.4 °F | 43.1 °F | 0.26 in. |
| February | 16.2 °F | 45.3 °F | 0.47 in. |
| March | 24.3 °F | 55.8 °F | 0.8 in. |
| April | 32.3 °F | 63.7 °F | 1.9 in. |
| May | 42.9 °F | 72.8 °F | 2.79 in. |
| June | 53.6 °F | 85.0 °F | 2.59 in. |
| July | 59.8 °F | 91.9 °F | 2.33 in. |
| August | 57.1 °F | 89.3 °F | 2.18 in. |
| September | 47.6 °F | 81.4 °F | 1.45 in. |
| October | 34.1 °F | 67.3 °F | 1.09 in. |
| November | 22.7 °F | 54.0 °F | 0.43 in. |
| December | 14.3 °F | 42.7 °F | 0.36 in. |
| Annual | 34.9 °F | 66 °F | 16.65 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |