Marble Falls, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 12.8 °C (low) to 26.3 °C (high). Annual precipitation averages 798.8 Millimeters. Marble Falls is located in USDA Plant Hardiness Zone 8b. 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 | 1.9 °C | 16.3 °C | 49.53 mm |
| February | 4.1 °C | 18.3 °C | 51.05 mm |
| March | 8.3 °C | 22.2 °C | 70.36 mm |
| April | 12.4 °C | 26.3 °C | 62.23 mm |
| May | 17.4 °C | 29.8 °C | 98.55 mm |
| June | 21.3 °C | 33.6 °C | 68.33 mm |
| July | 22.7 °C | 35.3 °C | 49.28 mm |
| August | 22.6 °C | 35.9 °C | 48.51 mm |
| September | 19.2 °C | 32.5 °C | 87.63 mm |
| October | 13.2 °C | 27.6 °C | 85.34 mm |
| November | 7.5 °C | 21.4 °C | 69.85 mm |
| December | 2.6 °C | 16.8 °C | 58.17 mm |
| Annual | 12.8 °C | 26.3 °C | 798.83 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°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 |