Plantersville, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 14.4 °C (low) to 26.2 °C (high). Annual precipitation averages 1229.1 Millimeters. Plantersville 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 | 4.7 °C | 16.4 °C | 100.84 mm |
| February | 6.7 °C | 18.4 °C | 81.53 mm |
| March | 10.2 °C | 22.2 °C | 88.9 mm |
| April | 13.9 °C | 25.8 °C | 91.44 mm |
| May | 18.6 °C | 29.7 °C | 128.52 mm |
| June | 22 °C | 33 °C | 116.59 mm |
| July | 23.1 °C | 34.7 °C | 75.69 mm |
| August | 22.9 °C | 35.3 °C | 100.58 mm |
| September | 20.2 °C | 32.3 °C | 102.87 mm |
| October | 14.8 °C | 27.7 °C | 122.43 mm |
| November | 9.4 °C | 21.7 °C | 117.35 mm |
| December | 5.7 °C | 17.3 °C | 102.36 mm |
| Annual | 14.4 °C | 26.2 °C | 1229.1 mm |
| 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 : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |