Kennedyville, Maryland has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 7.7 °C (low) to 18.8 °C (high). Annual precipitation averages 1183.4 Millimeters. Kennedyville is located in USDA Plant Hardiness Zone 7b. 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 | -3.7 °C | 6.1 °C | 85.34 mm |
| February | -3.1 °C | 7.5 °C | 72.9 mm |
| March | 0.8 °C | 12 °C | 104.9 mm |
| April | 6.4 °C | 18.4 °C | 91.44 mm |
| May | 11.7 °C | 23.6 °C | 101.6 mm |
| June | 16.9 °C | 28.3 °C | 117.6 mm |
| July | 19.7 °C | 30.7 °C | 112.78 mm |
| August | 18.6 °C | 29.8 °C | 105.16 mm |
| September | 14.9 °C | 26.4 °C | 113.28 mm |
| October | 8.3 °C | 20.1 °C | 101.35 mm |
| November | 2.8 °C | 13.8 °C | 79.5 mm |
| December | -1.1 °C | 8.3 °C | 97.54 mm |
| Annual | 7.7 °C | 18.8 °C | 1183.39 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 7b : -15°C to -12.2°C |
| Plant Hardiness Zone - 2012 | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |