Denton, Maryland has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 46.1 °F (low) to 66.6 °F (high). Annual precipitation averages 46.4 Inches. Denton is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 26.1 °F | 44.0 °F | 3.41 in. |
| February | 27.2 °F | 46.6 °F | 3.03 in. |
| March | 33.8 °F | 54.2 °F | 3.96 in. |
| April | 43.8 °F | 66.0 °F | 3.65 in. |
| May | 53.4 °F | 74.9 °F | 4.0 in. |
| June | 62.6 °F | 83.6 °F | 4.38 in. |
| July | 67.4 °F | 88.0 °F | 4.37 in. |
| August | 65.2 °F | 86.0 °F | 4.6 in. |
| September | 58.8 °F | 80.2 °F | 4.05 in. |
| October | 47.1 °F | 69.0 °F | 3.98 in. |
| November | 36.9 °F | 57.9 °F | 3.25 in. |
| December | 30.5 °F | 48.4 °F | 3.72 in. |
| Annual | 46.1 °F | 66.6 °F | 46.4 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 75-100 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 | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |