Rocky Ford, Colorado has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 36.8 °F (low) to 70 °F (high). Annual precipitation averages 12.3 Inches. Rocky Ford is located in USDA Plant Hardiness Zone 6a. 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 | 14.7 °F | 47.4 °F | 0.3 in. |
| February | 18.3 °F | 50.8 °F | 0.35 in. |
| March | 26.4 °F | 61.3 °F | 0.71 in. |
| April | 35.0 °F | 68.5 °F | 1.32 in. |
| May | 45.7 °F | 77.9 °F | 1.6 in. |
| June | 56.3 °F | 89.0 °F | 1.53 in. |
| July | 61.1 °F | 93.4 °F | 2.14 in. |
| August | 59.3 °F | 91.1 °F | 1.94 in. |
| September | 49.9 °F | 84.3 °F | 0.71 in. |
| October | 35.8 °F | 71.4 °F | 0.94 in. |
| November | 23.9 °F | 57.9 °F | 0.44 in. |
| December | 15.3 °F | 47.4 °F | 0.34 in. |
| Annual | 36.8 °F | 70 °F | 12.32 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 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |