Chesapeake Beach, Maryland has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 50.3 °F (low) to 65.5 °F (high). Annual precipitation averages 45.7 Inches. Chesapeake Beach 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 | 29.4 °F | 43.4 °F | 3.13 in. |
| February | 30.1 °F | 45.6 °F | 2.73 in. |
| March | 36.8 °F | 53.2 °F | 4.01 in. |
| April | 46.9 °F | 64.8 °F | 3.22 in. |
| May | 56.8 °F | 73.5 °F | 4.26 in. |
| June | 66.5 °F | 82.1 °F | 4.34 in. |
| July | 71.6 °F | 86.6 °F | 4.48 in. |
| August | 70.5 °F | 84.9 °F | 4.23 in. |
| September | 64.4 °F | 78.9 °F | 4.38 in. |
| October | 53.0 °F | 68.0 °F | 4.06 in. |
| November | 42.7 °F | 56.8 °F | 3.19 in. |
| December | 34.6 °F | 47.7 °F | 3.69 in. |
| Annual | 50.3 °F | 65.5 °F | 45.72 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 |