La Jara, Colorado has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 24.5 °F (low) to 59.1 °F (high). Annual precipitation averages 7.7 Inches. La Jara is located in USDA Plant Hardiness Zone 4b. The growing season typically runs from the last frost around Jun. 1 - Jun. 10 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 0.4 °F | 34.0 °F | 0.28 in. |
| February | 7.6 °F | 40.3 °F | 0.23 in. |
| March | 17.5 °F | 51.3 °F | 0.48 in. |
| April | 24.3 °F | 58.8 °F | 0.57 in. |
| May | 33.8 °F | 67.7 °F | 0.67 in. |
| June | 40.7 °F | 77.5 °F | 0.4 in. |
| July | 46.8 °F | 80.5 °F | 1.17 in. |
| August | 44.7 °F | 78.5 °F | 1.36 in. |
| September | 37.3 °F | 73.3 °F | 1.04 in. |
| October | 25.1 °F | 62.6 °F | 0.69 in. |
| November | 13.2 °F | 48.8 °F | 0.43 in. |
| December | 2.0 °F | 35.5 °F | 0.39 in. |
| Annual | 24.5 °F | 59.1 °F | 7.71 in. |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | Jun. 1 - Jun. 10 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 4b : -25°F to -20°F |
| Plant Hardiness Zone - 2012 | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |