Edgemere, Maryland has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 48.9 °F (low) to 64.5 °F (high). Annual precipitation averages 47 Inches. Edgemere 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 | 27.8 °F | 42.1 °F | 3.3 in. |
| February | 29.2 °F | 44.3 °F | 2.83 in. |
| March | 35.9 °F | 52.0 °F | 4.22 in. |
| April | 46.4 °F | 63.5 °F | 3.59 in. |
| May | 56.1 °F | 72.6 °F | 4.21 in. |
| June | 65.6 °F | 81.6 °F | 4.44 in. |
| July | 70.7 °F | 86.1 °F | 4.4 in. |
| August | 69.2 °F | 84.6 °F | 4.07 in. |
| September | 62.6 °F | 78.2 °F | 4.64 in. |
| October | 50.7 °F | 66.9 °F | 4.13 in. |
| November | 40.4 °F | 55.8 °F | 3.23 in. |
| December | 32.6 °F | 46.5 °F | 3.91 in. |
| Annual | 48.9 °F | 64.5 °F | 46.97 in. |
| 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 : 10°F to 15°F |
| Plant Hardiness Zone - 2012 | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |