Barton Creek, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 56.2 °F (low) to 79.4 °F (high). Annual precipitation averages 37 Inches. Barton Creek is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 21 - Feb. 29 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 38.0 °F | 61.6 °F | 2.54 in. |
| February | 41.8 °F | 65.1 °F | 2.05 in. |
| March | 48.5 °F | 72.0 °F | 2.9 in. |
| April | 55.3 °F | 79.1 °F | 2.64 in. |
| May | 64.1 °F | 85.7 °F | 4.76 in. |
| June | 70.4 °F | 92.0 °F | 3.86 in. |
| July | 72.4 °F | 95.3 °F | 2.47 in. |
| August | 72.3 °F | 96.6 °F | 2.43 in. |
| September | 67.0 °F | 90.6 °F | 3.59 in. |
| October | 57.3 °F | 81.8 °F | 4.07 in. |
| November | 47.2 °F | 70.4 °F | 2.93 in. |
| December | 39.5 °F | 62.7 °F | 2.73 in. |
| Annual | 56.2 °F | 79.4 °F | 36.97 in. |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Feb. 21 - Feb. 29 |
| 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 | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |