New Braunfels, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 57.5 °F (low) to 80.3 °F (high). Annual precipitation averages 34.4 Inches. New Braunfels is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 11 - Feb. 20 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 39.7 °F | 62.9 °F | 2.2 in. |
| February | 43.2 °F | 67.0 °F | 1.89 in. |
| March | 50.2 °F | 73.4 °F | 2.63 in. |
| April | 56.9 °F | 80.1 °F | 2.4 in. |
| May | 65.5 °F | 86.5 °F | 4.12 in. |
| June | 71.5 °F | 92.1 °F | 3.85 in. |
| July | 73.3 °F | 95.2 °F | 2.45 in. |
| August | 73.3 °F | 96.6 °F | 2.4 in. |
| September | 68.1 °F | 90.7 °F | 3.6 in. |
| October | 58.5 °F | 82.6 °F | 3.89 in. |
| November | 48.7 °F | 71.9 °F | 2.72 in. |
| December | 41.3 °F | 64.2 °F | 2.29 in. |
| Annual | 57.5 °F | 80.3 °F | 34.44 in. |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Feb. 11 - Feb. 20 |
| Average Days With Frost | 10-20 Days |
| Plant Hardiness Zone | Zone 9a : 20°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 8b : 15°F to 20°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |