Covington, Louisiana has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 13.6 °C (low) to 25.8 °C (high). Annual precipitation averages 1636.8 Millimeters. Covington 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 | 4.4 °C | 16.7 °C | 143.26 mm |
| February | 6.2 °C | 18.9 °C | 120.4 mm |
| March | 9.4 °C | 22.4 °C | 130.56 mm |
| April | 12.8 °C | 25.8 °C | 129.03 mm |
| May | 17.3 °C | 29.4 °C | 130.3 mm |
| June | 21.1 °C | 32.2 °C | 168.66 mm |
| July | 22.3 °C | 33.1 °C | 184.66 mm |
| August | 22.3 °C | 33.1 °C | 170.69 mm |
| September | 19.8 °C | 31.1 °C | 121.16 mm |
| October | 14 °C | 27 °C | 101.6 mm |
| November | 8.1 °C | 21.5 °C | 104.14 mm |
| December | 5.4 °C | 17.8 °C | 132.33 mm |
| Annual | 13.6 °C | 25.8 °C | 1636.79 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 |