Louise, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 15.5 °C (low) to 26.7 °C (high). Annual precipitation averages 1141 Millimeters. Louise is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 1 - Feb. 10 through the first frost around Dec. 21 - Dec. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 6.3 °C | 17.6 °C | 83.57 mm |
| February | 8.2 °C | 19.7 °C | 62.99 mm |
| March | 11.8 °C | 22.9 °C | 78.74 mm |
| April | 15.3 °C | 26.4 °C | 75.95 mm |
| May | 19.5 °C | 29.8 °C | 115.06 mm |
| June | 22.8 °C | 32.7 °C | 125.22 mm |
| July | 23.4 °C | 33.7 °C | 90.42 mm |
| August | 23.3 °C | 34.6 °C | 103.12 mm |
| September | 21 °C | 32.4 °C | 121.67 mm |
| October | 16 °C | 28.6 °C | 105.66 mm |
| November | 11 °C | 23.1 °C | 97.79 mm |
| December | 7.3 °C | 18.8 °C | 80.77 mm |
| Annual | 15.5 °C | 26.7 °C | 1140.96 mm |
| Average First Frost Date | Dec. 21 - Dec. 31 |
| Average Last Frost Date | Feb. 1 - Feb. 10 |
| Average Days With Frost | 10-20 Days |
| Plant Hardiness Zone | Zone 9a : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 9a : -6.7°C to -3.9°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |