Annetta, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 12.1 °C (low) to 24.6 °C (high). Annual precipitation averages 918.2 Millimeters. Annetta is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 0.7 °C | 13.6 °C | 53.85 mm |
| February | 2.9 °C | 15.7 °C | 63.25 mm |
| March | 7.2 °C | 20.1 °C | 82.04 mm |
| April | 11.3 °C | 24.3 °C | 72.9 mm |
| May | 16.7 °C | 28.2 °C | 113.54 mm |
| June | 21.1 °C | 32.6 °C | 100.08 mm |
| July | 23 °C | 35.1 °C | 51.31 mm |
| August | 22.7 °C | 35.3 °C | 67.06 mm |
| September | 18.6 °C | 31.3 °C | 82.55 mm |
| October | 12.4 °C | 25.6 °C | 103.38 mm |
| November | 6.7 °C | 19.3 °C | 68.07 mm |
| December | 1.9 °C | 14.5 °C | 60.2 mm |
| Annual | 12.1 °C | 24.6 °C | 918.23 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 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 |