Edgewood, Maryland has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 47.7 °F (low) to 65.1 °F (high). Annual precipitation averages 48.7 Inches. Edgewood 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 | 26.9 °F | 42.1 °F | 3.46 in. |
| February | 28.0 °F | 44.5 °F | 2.81 in. |
| March | 34.8 °F | 52.5 °F | 4.33 in. |
| April | 45.2 °F | 64.4 °F | 3.7 in. |
| May | 54.8 °F | 73.7 °F | 4.18 in. |
| June | 64.4 °F | 82.5 °F | 4.62 in. |
| July | 69.5 °F | 87.0 °F | 4.59 in. |
| August | 67.9 °F | 85.5 °F | 4.34 in. |
| September | 61.1 °F | 79.0 °F | 4.75 in. |
| October | 49.3 °F | 67.5 °F | 4.45 in. |
| November | 38.8 °F | 55.9 °F | 3.35 in. |
| December | 31.4 °F | 46.4 °F | 4.15 in. |
| Annual | 47.7 °F | 65.1 °F | 48.73 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 | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |