Ferndale, Maryland has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 47.9 °F (low) to 66.1 °F (high). Annual precipitation averages 47 Inches. Ferndale 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 Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 27.0 °F | 43.2 °F | 3.27 in. |
| February | 28.5 °F | 45.7 °F | 2.95 in. |
| March | 35.3 °F | 53.9 °F | 4.29 in. |
| April | 45.6 °F | 65.8 °F | 3.61 in. |
| May | 55.3 °F | 74.7 °F | 4.21 in. |
| June | 64.7 °F | 83.7 °F | 4.32 in. |
| July | 69.6 °F | 88.0 °F | 4.48 in. |
| August | 67.9 °F | 86.1 °F | 4.02 in. |
| September | 61.2 °F | 79.4 °F | 4.52 in. |
| October | 49.2 °F | 68.0 °F | 4.07 in. |
| November | 38.8 °F | 57.0 °F | 3.26 in. |
| December | 31.5 °F | 47.4 °F | 3.99 in. |
| Annual | 47.9 °F | 66.1 °F | 46.99 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| 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 7b : 5°F to 10°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |