Annetta South, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 12 °C (low) to 24.5 °C (high). Annual precipitation averages 926.1 Millimeters. Annetta South is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 0.6 °C | 13.6 °C | 55.12 mm |
| February | 2.7 °C | 15.6 °C | 62.99 mm |
| March | 7.1 °C | 20.1 °C | 83.82 mm |
| April | 11.2 °C | 24.2 °C | 73.91 mm |
| May | 16.6 °C | 28.1 °C | 114.55 mm |
| June | 20.9 °C | 32.5 °C | 99.82 mm |
| July | 22.8 °C | 34.9 °C | 50.8 mm |
| August | 22.6 °C | 35.2 °C | 67.06 mm |
| September | 18.4 °C | 31.2 °C | 82.8 mm |
| October | 12.3 °C | 25.5 °C | 104.65 mm |
| November | 6.6 °C | 19.3 °C | 69.85 mm |
| December | 1.8 °C | 14.3 °C | 60.71 mm |
| Annual | 12 °C | 24.5 °C | 926.08 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 40-50 Days |
| Plant Hardiness Zone | Zone 8a : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |