Winnie, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 15.6 °C (low) to 25.6 °C (high). Annual precipitation averages 1556.8 Millimeters. Winnie is located in USDA Plant Hardiness Zone 9b. The growing season typically runs from the last frost around Jan. 21 - Jan. 31 through the first frost around Jan. 1 - Jan. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 5.9 °C | 16.4 °C | 129.54 mm |
| February | 7.9 °C | 18.6 °C | 90.68 mm |
| March | 11.3 °C | 21.9 °C | 96.01 mm |
| April | 15.1 °C | 25.3 °C | 103.63 mm |
| May | 19.6 °C | 29 °C | 133.35 mm |
| June | 22.9 °C | 32.1 °C | 161.54 mm |
| July | 23.9 °C | 33 °C | 141.73 mm |
| August | 23.6 °C | 33.4 °C | 164.59 mm |
| September | 21.2 °C | 31.2 °C | 163.07 mm |
| October | 17 °C | 27.2 °C | 136.14 mm |
| November | 11 °C | 21.7 °C | 114.81 mm |
| December | 7.2 °C | 17.6 °C | 121.67 mm |
| Annual | 15.6 °C | 25.6 °C | 1556.76 mm |
| Average First Frost Date | Jan. 1 - Jan. 10 |
| Average Last Frost Date | Jan. 21 - Jan. 31 |
| Average Days With Frost | Frost Rare |
| Plant Hardiness Zone | Zone 9b : -3.9°C to -1.1°C |
| Plant Hardiness Zone - 2012 | Zone 9a : -6.7°C to -3.9°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |