Rock Point, Maryland has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 49.5 °F (low) to 68.5 °F (high). Annual precipitation averages 44.8 Inches. Rock Point 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 | 28.7 °F | 46.4 °F | 3.06 in. |
| February | 30.3 °F | 49.2 °F | 2.78 in. |
| March | 37.1 °F | 56.7 °F | 3.91 in. |
| April | 46.9 °F | 68.6 °F | 3.25 in. |
| May | 57.0 °F | 76.8 °F | 4.01 in. |
| June | 65.9 °F | 85.1 °F | 4.27 in. |
| July | 70.5 °F | 89.1 °F | 4.42 in. |
| August | 69.0 °F | 87.2 °F | 4.11 in. |
| September | 62.8 °F | 81.4 °F | 4.2 in. |
| October | 51.4 °F | 70.6 °F | 3.86 in. |
| November | 40.7 °F | 59.5 °F | 3.15 in. |
| December | 33.7 °F | 50.8 °F | 3.73 in. |
| Annual | 49.5 °F | 68.5 °F | 44.75 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 | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |