Kenner, Louisiana has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 16.8 °C (low) to 25.5 °C (high). Annual precipitation averages 1667.5 Millimeters. Kenner is located in USDA Plant Hardiness Zone 9b.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 7.3 °C | 16.6 °C | 139.7 mm |
| February | 9.2 °C | 18.7 °C | 110.49 mm |
| March | 12.6 °C | 22.1 °C | 116.08 mm |
| April | 16.3 °C | 25.6 °C | 124.97 mm |
| May | 20.6 °C | 29.3 °C | 145.03 mm |
| June | 23.9 °C | 31.8 °C | 189.99 mm |
| July | 24.7 °C | 32.8 °C | 191.52 mm |
| August | 24.7 °C | 32.7 °C | 181.61 mm |
| September | 23 °C | 30.8 °C | 136.14 mm |
| October | 17.9 °C | 26.6 °C | 97.28 mm |
| November | 12.2 °C | 21.3 °C | 104.9 mm |
| December | 8.7 °C | 17.8 °C | 129.79 mm |
| Annual | 16.8 °C | 25.5 °C | 1667.5 mm |
| Average First Frost Date | Frost Rare |
| Average Last Frost Date | |
| Average Days With Frost | Frost Rare |
| Plant Hardiness Zone | Zone 9b : -3.9°C to -1.1°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 |