Leander, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 55.3 °F (low) to 78.4 °F (high). Annual precipitation averages 35.5 Inches. Leander is located in USDA Plant Hardiness Zone 8b. 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 | 36.7 °F | 60.5 °F | 2.39 in. |
| February | 40.5 °F | 63.9 °F | 2.09 in. |
| March | 47.3 °F | 71.0 °F | 2.93 in. |
| April | 54.4 °F | 78.3 °F | 2.76 in. |
| May | 63.5 °F | 84.7 °F | 4.4 in. |
| June | 70.1 °F | 91.1 °F | 3.38 in. |
| July | 72.2 °F | 94.5 °F | 2.57 in. |
| August | 71.9 °F | 95.6 °F | 2.44 in. |
| September | 66.7 °F | 89.5 °F | 3.38 in. |
| October | 56.5 °F | 80.7 °F | 3.78 in. |
| November | 45.9 °F | 69.3 °F | 2.82 in. |
| December | 38.1 °F | 61.4 °F | 2.54 in. |
| Annual | 55.3 °F | 78.4 °F | 35.48 in. |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Feb. 21 - Feb. 29 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 8b : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8b : 15°F to 20°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |