Covington, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 8.5 °C (low) to 21.8 °C (high). Annual precipitation averages 878.8 Millimeters. Covington is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -4.2 °C | 8.8 °C | 28.19 mm |
| February | -2.4 °C | 10.8 °C | 36.32 mm |
| March | 2.4 °C | 16.3 °C | 62.74 mm |
| April | 7.2 °C | 21.2 °C | 92.71 mm |
| May | 13.4 °C | 26.2 °C | 120.65 mm |
| June | 18.9 °C | 31.7 °C | 118.87 mm |
| July | 21.4 °C | 34.7 °C | 89.41 mm |
| August | 20.5 °C | 34.1 °C | 88.65 mm |
| September | 16.1 °C | 29.8 °C | 74.17 mm |
| October | 8.9 °C | 22.9 °C | 80.77 mm |
| November | 2.3 °C | 15.8 °C | 46.99 mm |
| December | -2.9 °C | 9.4 °C | 39.37 mm |
| Annual | 8.5 °C | 21.8 °C | 878.84 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |