Alpine, Texas has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 48.1 °F (low) to 76.9 °F (high). Annual precipitation averages 15.6 Inches. Alpine is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 31.5 °F | 59.6 °F | 0.53 in. |
| February | 34.7 °F | 64.2 °F | 0.42 in. |
| March | 40.0 °F | 71.2 °F | 0.39 in. |
| April | 46.6 °F | 79.2 °F | 0.53 in. |
| May | 55.6 °F | 86.5 °F | 1.13 in. |
| June | 63.0 °F | 91.9 °F | 2.13 in. |
| July | 64.4 °F | 90.2 °F | 3.06 in. |
| August | 63.6 °F | 89.3 °F | 2.73 in. |
| September | 58.2 °F | 83.9 °F | 2.28 in. |
| October | 49.0 °F | 78.3 °F | 1.23 in. |
| November | 38.4 °F | 68.1 °F | 0.59 in. |
| December | 32.6 °F | 60.6 °F | 0.57 in. |
| Annual | 48.1 °F | 76.9 °F | 15.59 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : 10°F to 15°F |
| Plant Hardiness Zone - 2012 | Zone 8a : 10°F to 15°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |