Covington, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 12.5 °C (low) to 25.1 °C (high). Annual precipitation averages 987 Millimeters. Covington is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 1.6 °C | 14.2 °C | 68.07 mm |
| February | 3.7 °C | 16.4 °C | 70.87 mm |
| March | 7.6 °C | 20.3 °C | 91.69 mm |
| April | 11.7 °C | 24.7 °C | 87.88 mm |
| May | 16.9 °C | 28.7 °C | 114.55 mm |
| June | 21.3 °C | 32.9 °C | 99.31 mm |
| July | 22.9 °C | 35.3 °C | 47.75 mm |
| August | 22.8 °C | 35.6 °C | 63.75 mm |
| September | 18.9 °C | 31.9 °C | 81.03 mm |
| October | 12.9 °C | 26.3 °C | 114.05 mm |
| November | 7.2 °C | 19.6 °C | 75.18 mm |
| December | 2.6 °C | 14.9 °C | 72.9 mm |
| Annual | 12.5 °C | 25.1 °C | 987.03 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |