Grand Cane, Louisiana has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 12.6 °C (low) to 24.8 °C (high). Annual precipitation averages 1366.3 Millimeters. 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 | 2.4 °C | 14.4 °C | 125.98 mm |
| February | 4.5 °C | 16.9 °C | 119.89 mm |
| March | 7.8 °C | 20.7 °C | 134.87 mm |
| April | 11.8 °C | 24.6 °C | 124.46 mm |
| May | 16.9 °C | 28.5 °C | 114.3 mm |
| June | 20.9 °C | 31.9 °C | 113.03 mm |
| July | 22.5 °C | 33.8 °C | 93.73 mm |
| August | 22.1 °C | 34.2 °C | 90.93 mm |
| September | 18.3 °C | 31.2 °C | 89.15 mm |
| October | 12.6 °C | 25.9 °C | 113.03 mm |
| November | 7.1 °C | 19.7 °C | 111.51 mm |
| December | 3.7 °C | 15.2 °C | 135.38 mm |
| Annual | 12.6 °C | 24.8 °C | 1366.26 mm |
| 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 : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |