Accokeek, Maryland has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 47.7 °F (low) to 67.2 °F (high). Annual precipitation averages 45.3 Inches. Accokeek is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 27.2 °F | 44.3 °F | 3.07 in. |
| February | 28.9 °F | 47.8 °F | 2.72 in. |
| March | 35.6 °F | 56.1 °F | 3.86 in. |
| April | 45.5 °F | 67.8 °F | 3.37 in. |
| May | 55.0 °F | 75.9 °F | 4.34 in. |
| June | 64.2 °F | 84.1 °F | 4.46 in. |
| July | 69.1 °F | 88.5 °F | 4.49 in. |
| August | 67.4 °F | 86.7 °F | 3.79 in. |
| September | 60.9 °F | 80.2 °F | 4.37 in. |
| October | 49.0 °F | 68.7 °F | 3.89 in. |
| November | 38.5 °F | 57.8 °F | 3.19 in. |
| December | 31.5 °F | 48.2 °F | 3.75 in. |
| Annual | 47.7 °F | 67.2 °F | 45.3 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 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 |