Smiley, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 58.2 °F (low) to 81.3 °F (high). Annual precipitation averages 34.4 Inches. Smiley 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 | 40.9 °F | 64.3 °F | 2.13 in. |
| February | 45.2 °F | 68.1 °F | 2.0 in. |
| March | 51.5 °F | 74.5 °F | 2.77 in. |
| April | 57.6 °F | 80.7 °F | 2.67 in. |
| May | 66.0 °F | 87.3 °F | 4.17 in. |
| June | 71.7 °F | 93.0 °F | 3.46 in. |
| July | 73.2 °F | 95.9 °F | 2.37 in. |
| August | 72.9 °F | 97.1 °F | 2.87 in. |
| September | 68.3 °F | 91.6 °F | 3.58 in. |
| October | 59.1 °F | 84.1 °F | 3.25 in. |
| November | 49.5 °F | 73.5 °F | 2.65 in. |
| December | 42.8 °F | 65.9 °F | 2.43 in. |
| Annual | 58.2 °F | 81.3 °F | 34.35 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 9a : 20°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 9a : 20°F to 25°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |