Iota, Louisiana has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 14.6 °C (low) to 25.6 °C (high). Annual precipitation averages 1586.5 Millimeters. Iota is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 11 - Feb. 20 through the first frost around Dec. 1 - Dec. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 5.2 °C | 16.1 °C | 163.32 mm |
| February | 7.2 °C | 18.2 °C | 115.57 mm |
| March | 10.6 °C | 21.9 °C | 97.54 mm |
| April | 14.4 °C | 25.7 °C | 127.51 mm |
| May | 19 °C | 29.4 °C | 140.21 mm |
| June | 22.3 °C | 32.3 °C | 158.5 mm |
| July | 23.2 °C | 33.2 °C | 137.92 mm |
| August | 22.9 °C | 33.5 °C | 140.72 mm |
| September | 20.3 °C | 31.4 °C | 133.86 mm |
| October | 14.6 °C | 27.2 °C | 122.94 mm |
| November | 9.3 °C | 21.4 °C | 123.95 mm |
| December | 6.3 °C | 17.3 °C | 124.46 mm |
| Annual | 14.6 °C | 25.6 °C | 1586.5 mm |
| Average First Frost Date | Dec. 1 - Dec. 10 |
| Average Last Frost Date | Feb. 11 - Feb. 20 |
| Average Days With Frost | 10-20 Days |
| Plant Hardiness Zone | Zone 9a : -6.7°C to -3.9°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 |