Falls City, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 15 °C (low) to 28 °C (high). Annual precipitation averages 763.5 Millimeters. Falls City is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Jan. 21 - Jan. 31 through the first frost around Dec. 11 - Dec. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 5.4 °C | 18.6 °C | 38.86 mm |
| February | 7.7 °C | 21.1 °C | 40.64 mm |
| March | 11.5 °C | 24.3 °C | 59.94 mm |
| April | 14.7 °C | 28 °C | 61.47 mm |
| May | 19.4 °C | 31.5 °C | 89.92 mm |
| June | 22.4 °C | 34.6 °C | 74.42 mm |
| July | 23.2 °C | 35.8 °C | 57.4 mm |
| August | 23.1 °C | 36.5 °C | 65.79 mm |
| September | 20.6 °C | 33.4 °C | 100.58 mm |
| October | 15.8 °C | 29.6 °C | 69.85 mm |
| November | 10.4 °C | 23.7 °C | 52.32 mm |
| December | 6.3 °C | 19.4 °C | 52.32 mm |
| Annual | 15 °C | 28 °C | 763.51 mm |
| Average First Frost Date | Dec. 11 - Dec. 20 |
| Average Last Frost Date | Jan. 21 - Jan. 31 |
| Average Days With Frost | 10-20 Days |
| Plant Hardiness Zone | Zone 9a : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 9a : -6.7°C to -3.9°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |