Lakeway, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 55.6 °F (low) to 78.9 °F (high). Annual precipitation averages 34.8 Inches. Lakeway is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 37.0 °F | 61.2 °F | 2.34 in. |
| February | 40.8 °F | 64.5 °F | 2.0 in. |
| March | 47.9 °F | 71.5 °F | 2.83 in. |
| April | 54.8 °F | 78.6 °F | 2.6 in. |
| May | 63.7 °F | 85.1 °F | 4.46 in. |
| June | 70.0 °F | 91.3 °F | 3.32 in. |
| July | 72.1 °F | 95.0 °F | 2.12 in. |
| August | 71.9 °F | 96.2 °F | 2.44 in. |
| September | 66.8 °F | 89.9 °F | 3.45 in. |
| October | 56.7 °F | 81.3 °F | 3.85 in. |
| November | 46.6 °F | 69.9 °F | 2.89 in. |
| December | 38.4 °F | 62.2 °F | 2.46 in. |
| Annual | 55.6 °F | 78.9 °F | 34.76 in. |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 20-30 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 |