Chackbay, Louisiana has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 59.7 °F (low) to 78.2 °F (high). Annual precipitation averages 67.5 Inches. 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 | 43.5 °F | 62.8 °F | 5.76 in. |
| February | 47.1 °F | 66.4 °F | 4.32 in. |
| March | 52.9 °F | 72.2 °F | 4.39 in. |
| April | 58.8 °F | 77.9 °F | 5.19 in. |
| May | 66.7 °F | 84.4 °F | 6.16 in. |
| June | 72.5 °F | 88.9 °F | 8.09 in. |
| July | 74.4 °F | 90.5 °F | 7.32 in. |
| August | 74.0 °F | 90.8 °F | 7.43 in. |
| September | 70.5 °F | 87.7 °F | 5.57 in. |
| October | 60.4 °F | 80.7 °F | 4.45 in. |
| November | 50.4 °F | 71.4 °F | 4.16 in. |
| December | 45.5 °F | 65.2 °F | 4.66 in. |
| Annual | 59.7 °F | 78.2 °F | 67.5 in. |
| 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 : 25°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 9a : 20°F to 25°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |