Inniswold, Louisiana has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 57.4 °F (low) to 78.4 °F (high). Annual precipitation averages 65.5 Inches. Inniswold is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 1 - Feb. 10 through the first frost around Dec. 11 - Dec. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 40.8 °F | 61.7 °F | 6.04 in. |
| February | 44.2 °F | 65.8 °F | 4.9 in. |
| March | 50.3 °F | 72.5 °F | 4.62 in. |
| April | 56.5 °F | 78.5 °F | 5.22 in. |
| May | 64.7 °F | 85.3 °F | 5.88 in. |
| June | 71.0 °F | 89.8 °F | 6.87 in. |
| July | 73.1 °F | 91.3 °F | 6.21 in. |
| August | 72.6 °F | 91.8 °F | 6.8 in. |
| September | 68.3 °F | 88.4 °F | 4.84 in. |
| October | 57.5 °F | 80.8 °F | 4.69 in. |
| November | 47.6 °F | 70.8 °F | 4.12 in. |
| December | 42.6 °F | 64.0 °F | 5.32 in. |
| Annual | 57.4 °F | 78.4 °F | 65.51 in. |
| Average First Frost Date | Dec. 11 - Dec. 20 |
| Average Last Frost Date | Feb. 1 - Feb. 10 |
| Average Days With Frost | 10-20 Days |
| Plant Hardiness Zone | Zone 9a : 20°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 9a : 20°F to 25°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |