Wilson, Louisiana has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 13.1 °C (low) to 25.5 °C (high). Annual precipitation averages 1645.7 Millimeters. Wilson 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 | 3.8 °C | 16.1 °C | 173.23 mm |
| February | 5.5 °C | 18.3 °C | 142.75 mm |
| March | 9 °C | 22.1 °C | 140.97 mm |
| April | 12.6 °C | 25.6 °C | 131.06 mm |
| May | 17.1 °C | 29.2 °C | 136.14 mm |
| June | 20.7 °C | 32.1 °C | 140.21 mm |
| July | 21.9 °C | 33 °C | 148.59 mm |
| August | 21.7 °C | 33.3 °C | 156.72 mm |
| September | 19.1 °C | 31.2 °C | 110.24 mm |
| October | 13.1 °C | 26.6 °C | 118.11 mm |
| November | 7.7 °C | 21.1 °C | 112.27 mm |
| December | 4.7 °C | 17.1 °C | 135.38 mm |
| Annual | 13.1 °C | 25.5 °C | 1645.67 mm |
| 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 : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |