Wilson, Texas has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 8.5 °C (low) to 23.8 °C (high). Annual precipitation averages 496.1 Millimeters. Wilson is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -2.7 °C | 12.8 °C | 18.29 mm |
| February | -1.1 °C | 15.3 °C | 19.05 mm |
| March | 3.1 °C | 19.8 °C | 27.43 mm |
| April | 7.4 °C | 24.3 °C | 36.07 mm |
| May | 13.2 °C | 28.7 °C | 68.33 mm |
| June | 18.2 °C | 32.7 °C | 67.06 mm |
| July | 20.1 °C | 33.8 °C | 53.34 mm |
| August | 19.3 °C | 33.2 °C | 52.32 mm |
| September | 15.3 °C | 29.2 °C | 68.83 mm |
| October | 9.1 °C | 24.3 °C | 39.37 mm |
| November | 2.4 °C | 17.8 °C | 25.65 mm |
| December | -1.8 °C | 13.2 °C | 20.32 mm |
| Annual | 8.5 °C | 23.8 °C | 496.06 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7b : -15°C to -12.2°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |