Chackbay, Louisiana has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 15.4 °C (low) to 25.7 °C (high). Annual precipitation averages 1714.5 Millimeters. Chackbay is located in USDA Plant Hardiness Zone 9b. The growing season typically runs from the last frost around Jan. 21 - Jan. 31 through the first frost around Jan. 1 - Jan. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 6.4 °C | 17.1 °C | 146.3 mm |
| February | 8.4 °C | 19.1 °C | 109.73 mm |
| March | 11.6 °C | 22.3 °C | 111.51 mm |
| April | 14.9 °C | 25.5 °C | 131.83 mm |
| May | 19.3 °C | 29.1 °C | 156.46 mm |
| June | 22.5 °C | 31.6 °C | 205.49 mm |
| July | 23.6 °C | 32.5 °C | 185.93 mm |
| August | 23.3 °C | 32.7 °C | 188.72 mm |
| September | 21.4 °C | 30.9 °C | 141.48 mm |
| October | 15.8 °C | 27.1 °C | 113.03 mm |
| November | 10.2 °C | 21.9 °C | 105.66 mm |
| December | 7.5 °C | 18.4 °C | 118.36 mm |
| Annual | 15.4 °C | 25.7 °C | 1714.5 mm |
| Average First Frost Date | Jan. 1 - Jan. 10 |
| Average Last Frost Date | Jan. 21 - Jan. 31 |
| Average Days With Frost | 10-20 Days |
| Plant Hardiness Zone | Zone 9b : -3.9°C to -1.1°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 |