San Saba, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 11.5 °C (low) to 25.9 °C (high). Annual precipitation averages 720.3 Millimeters. San Saba is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 0.5 °C | 15.6 °C | 38.61 mm |
| February | 2.9 °C | 17.6 °C | 50.04 mm |
| March | 7.1 °C | 21.5 °C | 60.45 mm |
| April | 11.1 °C | 25.9 °C | 50.29 mm |
| May | 16.2 °C | 29.4 °C | 106.17 mm |
| June | 20.2 °C | 33.1 °C | 84.84 mm |
| July | 21.6 °C | 35.5 °C | 46.23 mm |
| August | 21.4 °C | 35.7 °C | 53.85 mm |
| September | 17.8 °C | 32 °C | 59.94 mm |
| October | 11.7 °C | 27.1 °C | 74.93 mm |
| November | 6 °C | 20.8 °C | 54.1 mm |
| December | 1.3 °C | 16.3 °C | 40.89 mm |
| Annual | 11.5 °C | 25.9 °C | 720.34 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 40-50 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°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 |