Vega, Texas has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 41.3 °F (low) to 71.1 °F (high). Annual precipitation averages 18.6 Inches. Vega is located in USDA Plant Hardiness Zone 7a. 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 | 21.3 °F | 50.3 °F | 0.56 in. |
| February | 23.7 °F | 54.6 °F | 0.49 in. |
| March | 30.6 °F | 62.4 °F | 1.18 in. |
| April | 38.4 °F | 70.4 °F | 1.13 in. |
| May | 48.7 °F | 79.8 °F | 2.21 in. |
| June | 58.8 °F | 89.3 °F | 2.9 in. |
| July | 63.1 °F | 91.4 °F | 2.55 in. |
| August | 62.0 °F | 89.9 °F | 2.74 in. |
| September | 54.1 °F | 82.8 °F | 1.63 in. |
| October | 42.0 °F | 72.0 °F | 1.74 in. |
| November | 30.2 °F | 59.8 °F | 0.7 in. |
| December | 22.8 °F | 50.6 °F | 0.75 in. |
| Annual | 41.3 °F | 71.1 °F | 18.58 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |