Cedarville, Maryland has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 46.5 °F (low) to 67.3 °F (high). Annual precipitation averages 46 Inches. Cedarville 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 | 26.2 °F | 44.7 °F | 3.1 in. |
| February | 27.9 °F | 47.9 °F | 2.81 in. |
| March | 34.6 °F | 56.2 °F | 3.94 in. |
| April | 44.4 °F | 68.0 °F | 3.24 in. |
| May | 54.0 °F | 76.1 °F | 4.27 in. |
| June | 62.9 °F | 84.2 °F | 4.36 in. |
| July | 67.6 °F | 88.3 °F | 4.36 in. |
| August | 65.9 °F | 86.7 °F | 4.21 in. |
| September | 59.5 °F | 80.3 °F | 4.44 in. |
| October | 47.5 °F | 68.9 °F | 4.08 in. |
| November | 37.4 °F | 58.2 °F | 3.32 in. |
| December | 30.5 °F | 48.5 °F | 3.83 in. |
| Annual | 46.5 °F | 67.3 °F | 45.96 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 7b : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |