Reddell, Louisiana has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 14.2 °C (low) to 25.8 °C (high). Annual precipitation averages 1553.2 Millimeters. Reddell 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 | 4.7 °C | 16 °C | 168.15 mm |
| February | 6.8 °C | 18.3 °C | 123.19 mm |
| March | 10.2 °C | 22.2 °C | 107.44 mm |
| April | 13.9 °C | 26.1 °C | 127 mm |
| May | 18.6 °C | 29.6 °C | 132.08 mm |
| June | 21.9 °C | 32.6 °C | 141.73 mm |
| July | 22.9 °C | 33.5 °C | 122.17 mm |
| August | 22.6 °C | 33.8 °C | 124.21 mm |
| September | 19.8 °C | 31.5 °C | 125.98 mm |
| October | 14.1 °C | 27.3 °C | 119.13 mm |
| November | 8.8 °C | 21.3 °C | 128.27 mm |
| December | 5.9 °C | 17.3 °C | 133.86 mm |
| Annual | 14.2 °C | 25.8 °C | 1553.21 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 9a : -6.7°C to -3.9°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |