Covington, Indiana has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 42.2 °F (low) to 62.5 °F (high). Annual precipitation averages 41.1 Inches. Covington is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 18.4 °F | 34.3 °F | 2.51 in. |
| February | 21.2 °F | 38.7 °F | 2.13 in. |
| March | 30.6 °F | 50.4 °F | 2.86 in. |
| April | 41.2 °F | 63.8 °F | 4.08 in. |
| May | 52.5 °F | 74.5 °F | 4.73 in. |
| June | 61.7 °F | 82.5 °F | 5.0 in. |
| July | 64.3 °F | 85.3 °F | 4.26 in. |
| August | 61.9 °F | 83.9 °F | 3.42 in. |
| September | 54.3 °F | 79.1 °F | 2.9 in. |
| October | 43.1 °F | 66.8 °F | 3.26 in. |
| November | 32.9 °F | 51.5 °F | 3.41 in. |
| December | 24.0 °F | 39.2 °F | 2.58 in. |
| Annual | 42.2 °F | 62.5 °F | 41.14 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |