Dames Quarter, Maryland has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 10.3 °C (low) to 19.1 °C (high). Annual precipitation averages 1165.3 Millimeters. Dames Quarter is located in USDA Plant Hardiness Zone 8a. 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 | -1.1 °C | 7.2 °C | 84.58 mm |
| February | -0.5 °C | 8.4 °C | 74.42 mm |
| March | 3.2 °C | 12.4 °C | 104.39 mm |
| April | 8.7 °C | 18.7 °C | 87.88 mm |
| May | 14.1 °C | 23.3 °C | 92.96 mm |
| June | 19.3 °C | 27.8 °C | 103.12 mm |
| July | 22.1 °C | 30.4 °C | 112.27 mm |
| August | 21.3 °C | 29.3 °C | 121.16 mm |
| September | 17.9 °C | 26.4 °C | 108.97 mm |
| October | 11.7 °C | 20.6 °C | 102.87 mm |
| November | 5.6 °C | 14.4 °C | 79.76 mm |
| December | 1.5 °C | 9.7 °C | 92.96 mm |
| Annual | 10.3 °C | 19.1 °C | 1165.34 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 8a : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |