Yorktown, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 58.9 °F (low) to 81.5 °F (high). Annual precipitation averages 33.9 Inches. Yorktown is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 21 - Feb. 29 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 42.0 °F | 64.7 °F | 2.14 in. |
| February | 45.9 °F | 68.6 °F | 1.64 in. |
| March | 52.3 °F | 74.7 °F | 2.69 in. |
| April | 58.5 °F | 81.0 °F | 2.77 in. |
| May | 66.6 °F | 87.3 °F | 3.83 in. |
| June | 72.0 °F | 92.7 °F | 3.51 in. |
| July | 73.4 °F | 95.3 °F | 2.6 in. |
| August | 73.1 °F | 96.6 °F | 2.41 in. |
| September | 68.8 °F | 91.5 °F | 4.17 in. |
| October | 59.8 °F | 84.6 °F | 3.39 in. |
| November | 50.5 °F | 74.1 °F | 2.5 in. |
| December | 43.8 °F | 66.5 °F | 2.24 in. |
| Annual | 58.9 °F | 81.5 °F | 33.89 in. |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Feb. 21 - Feb. 29 |
| Average Days With Frost | 10-20 Days |
| Plant Hardiness Zone | Zone 9a : 20°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 9a : 20°F to 25°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |