South Toledo Bend, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 13 °C (low) to 25.2 °C (high). Annual precipitation averages 1443 Millimeters. South Toledo Bend is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 3.2 °C | 15.1 °C | 138.43 mm |
| February | 5 °C | 17.3 °C | 116.84 mm |
| March | 8.8 °C | 21.3 °C | 133.6 mm |
| April | 12.3 °C | 25.1 °C | 120.14 mm |
| May | 17.1 °C | 29.1 °C | 112.78 mm |
| June | 21.1 °C | 32.1 °C | 118.62 mm |
| July | 22.1 °C | 33.8 °C | 106.93 mm |
| August | 21.8 °C | 34.2 °C | 104.9 mm |
| September | 19.1 °C | 31.4 °C | 96.52 mm |
| October | 13.2 °C | 26.6 °C | 130.56 mm |
| November | 7.6 °C | 20.4 °C | 123.7 mm |
| December | 4.2 °C | 16.2 °C | 139.95 mm |
| Annual | 13 °C | 25.2 °C | 1442.97 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| 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 |