Choptank, Maryland has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 8.9 °C (low) to 19.6 °C (high). Annual precipitation averages 1142.2 Millimeters. Choptank 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 Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -2.2 °C | 7.2 °C | 84.84 mm |
| February | -1.6 °C | 8.6 °C | 71.88 mm |
| March | 2 °C | 12.9 °C | 104.39 mm |
| April | 7.5 °C | 19.4 °C | 89.15 mm |
| May | 12.8 °C | 24.1 °C | 94.74 mm |
| June | 18 °C | 29.1 °C | 105.66 mm |
| July | 20.6 °C | 31.4 °C | 105.41 mm |
| August | 19.3 °C | 30.2 °C | 116.33 mm |
| September | 15.8 °C | 27.1 °C | 95 mm |
| October | 9.7 °C | 21.1 °C | 99.82 mm |
| November | 4.1 °C | 14.8 °C | 79.5 mm |
| December | 0.2 °C | 9.6 °C | 95.5 mm |
| Annual | 8.9 °C | 19.6 °C | 1142.22 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| 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 7b : -15°C to -12.2°C |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |