Richland, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 55.4 °F (low) to 77.3 °F (high). Annual precipitation averages 41.7 Inches. Richland 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 | 36.4 °F | 58.0 °F | 3.12 in. |
| February | 40.0 °F | 62.2 °F | 3.21 in. |
| March | 47.1 °F | 69.0 °F | 3.86 in. |
| April | 54.0 °F | 76.4 °F | 3.7 in. |
| May | 63.7 °F | 83.5 °F | 4.37 in. |
| June | 71.1 °F | 90.7 °F | 3.95 in. |
| July | 73.6 °F | 94.7 °F | 1.99 in. |
| August | 73.1 °F | 95.8 °F | 2.49 in. |
| September | 66.6 °F | 89.6 °F | 3.17 in. |
| October | 55.9 °F | 79.5 °F | 4.89 in. |
| November | 45.6 °F | 68.3 °F | 3.32 in. |
| December | 38.2 °F | 60.0 °F | 3.67 in. |
| Annual | 55.4 °F | 77.3 °F | 41.74 in. |
| 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 : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8a : 10°F to 15°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |