Grand Cane, Louisiana has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 54.6 °F (low) to 76.6 °F (high). Annual precipitation averages 53.8 Inches. Grand Cane is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 36.3 °F | 57.9 °F | 4.96 in. |
| February | 40.1 °F | 62.5 °F | 4.72 in. |
| March | 46.1 °F | 69.2 °F | 5.31 in. |
| April | 53.3 °F | 76.2 °F | 4.9 in. |
| May | 62.4 °F | 83.3 °F | 4.5 in. |
| June | 69.6 °F | 89.5 °F | 4.45 in. |
| July | 72.5 °F | 92.9 °F | 3.69 in. |
| August | 71.8 °F | 93.6 °F | 3.58 in. |
| September | 64.9 °F | 88.1 °F | 3.51 in. |
| October | 54.6 °F | 78.6 °F | 4.45 in. |
| November | 44.7 °F | 67.5 °F | 4.39 in. |
| December | 38.6 °F | 59.3 °F | 5.33 in. |
| Annual | 54.6 °F | 76.6 °F | 53.79 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 8b : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8b : 15°F to 20°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |