Stevensville, Maryland has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 49.9 °F (low) to 64.7 °F (high). Annual precipitation averages 44.3 Inches. Stevensville 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 | 28.9 °F | 42.5 °F | 3.12 in. |
| February | 29.8 °F | 44.5 °F | 2.66 in. |
| March | 36.4 °F | 52.3 °F | 4.08 in. |
| April | 46.7 °F | 63.7 °F | 3.38 in. |
| May | 56.6 °F | 72.9 °F | 4.01 in. |
| June | 66.1 °F | 81.6 °F | 4.17 in. |
| July | 72.0 °F | 86.1 °F | 4.3 in. |
| August | 69.9 °F | 84.6 °F | 4.06 in. |
| September | 63.7 °F | 78.2 °F | 4.26 in. |
| October | 52.3 °F | 67.2 °F | 3.7 in. |
| November | 42.1 °F | 55.9 °F | 2.92 in. |
| December | 33.8 °F | 46.8 °F | 3.64 in. |
| Annual | 49.9 °F | 64.7 °F | 44.3 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 | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |