Cross Plains, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 51.4 °F (low) to 76.4 °F (high). Annual precipitation averages 28.6 Inches. Cross Plains is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 31.4 °F | 57.5 °F | 1.28 in. |
| February | 35.9 °F | 61.6 °F | 1.79 in. |
| March | 43.3 °F | 68.8 °F | 2.42 in. |
| April | 49.8 °F | 76.6 °F | 2.09 in. |
| May | 60.0 °F | 83.9 °F | 3.9 in. |
| June | 67.7 °F | 90.0 °F | 3.78 in. |
| July | 70.0 °F | 94.3 °F | 2.06 in. |
| August | 69.6 °F | 94.2 °F | 2.35 in. |
| September | 62.7 °F | 87.1 °F | 2.69 in. |
| October | 51.8 °F | 78.0 °F | 2.89 in. |
| November | 41.1 °F | 66.6 °F | 1.98 in. |
| December | 33.0 °F | 58.2 °F | 1.41 in. |
| Annual | 51.4 °F | 76.4 °F | 28.64 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : 10°F to 15°F |
| Plant Hardiness Zone - 2012 | Zone 8a : 10°F to 15°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |