Shiner, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 58.1 °F (low) to 80.2 °F (high). Annual precipitation averages 37.8 Inches. Shiner is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 1 - Feb. 10 through the first frost around Dec. 21 - Dec. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 40.8 °F | 63.1 °F | 2.7 in. |
| February | 44.8 °F | 66.7 °F | 1.96 in. |
| March | 51.3 °F | 73.2 °F | 2.89 in. |
| April | 57.4 °F | 79.8 °F | 2.9 in. |
| May | 65.6 °F | 86.1 °F | 4.19 in. |
| June | 71.5 °F | 91.9 °F | 4.08 in. |
| July | 73.0 °F | 94.8 °F | 2.37 in. |
| August | 73.1 °F | 96.2 °F | 3.2 in. |
| September | 68.4 °F | 90.8 °F | 3.46 in. |
| October | 59.1 °F | 82.9 °F | 4.31 in. |
| November | 49.4 °F | 72.3 °F | 3.09 in. |
| December | 42.5 °F | 64.8 °F | 2.67 in. |
| Annual | 58.1 °F | 80.2 °F | 37.82 in. |
| Average First Frost Date | Dec. 21 - Dec. 31 |
| Average Last Frost Date | Feb. 1 - Feb. 10 |
| Average Days With Frost | 10-20 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 |