La Junta Gardens, Colorado has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 37.3 °F (low) to 69.9 °F (high). Annual precipitation averages 13.1 Inches. La Junta Gardens is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 14.9 °F | 46.9 °F | 0.42 in. |
| February | 18.5 °F | 50.5 °F | 0.42 in. |
| March | 26.8 °F | 61.2 °F | 0.92 in. |
| April | 35.4 °F | 68.5 °F | 1.32 in. |
| May | 46.1 °F | 77.9 °F | 1.7 in. |
| June | 56.9 °F | 89.1 °F | 1.4 in. |
| July | 61.9 °F | 93.5 °F | 2.23 in. |
| August | 60.0 °F | 91.1 °F | 1.7 in. |
| September | 50.6 °F | 84.0 °F | 0.85 in. |
| October | 36.2 °F | 71.3 °F | 1.27 in. |
| November | 24.2 °F | 57.7 °F | 0.4 in. |
| December | 15.5 °F | 47.1 °F | 0.5 in. |
| Annual | 37.3 °F | 69.9 °F | 13.13 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 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 |