Richland Springs, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 11.3 °C (low) to 25.8 °C (high). Annual precipitation averages 719.3 Millimeters. Richland Springs 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 | 0.4 °C | 15.6 °C | 33.78 mm |
| February | 2.9 °C | 17.6 °C | 50.04 mm |
| March | 7.1 °C | 21.4 °C | 58.93 mm |
| April | 10.8 °C | 25.8 °C | 52.58 mm |
| May | 15.8 °C | 29.6 °C | 107.95 mm |
| June | 19.9 °C | 33.1 °C | 85.34 mm |
| July | 21.4 °C | 35.4 °C | 45.97 mm |
| August | 21.2 °C | 35.6 °C | 49.02 mm |
| September | 17.7 °C | 31.9 °C | 66.29 mm |
| October | 11.5 °C | 26.9 °C | 76.96 mm |
| November | 5.8 °C | 20.8 °C | 51.31 mm |
| December | 1.3 °C | 16 °C | 41.15 mm |
| Annual | 11.3 °C | 25.8 °C | 719.32 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 |