Danville, Maryland has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 41.1 °F (low) to 63.5 °F (high). Annual precipitation averages 40.4 Inches. Danville is located in USDA Plant Hardiness Zone 7a. 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 | 22.1 °F | 38.7 °F | 2.7 in. |
| February | 23.1 °F | 42.4 °F | 2.64 in. |
| March | 29.6 °F | 51.2 °F | 3.57 in. |
| April | 39.0 °F | 65.2 °F | 3.58 in. |
| May | 48.3 °F | 73.8 °F | 4.45 in. |
| June | 57.1 °F | 81.3 °F | 4.17 in. |
| July | 61.3 °F | 85.6 °F | 3.79 in. |
| August | 59.7 °F | 84.2 °F | 3.46 in. |
| September | 52.9 °F | 77.8 °F | 3.6 in. |
| October | 42.0 °F | 66.0 °F | 2.94 in. |
| November | 32.6 °F | 53.0 °F | 2.53 in. |
| December | 25.9 °F | 42.6 °F | 3.0 in. |
| Annual | 41.1 °F | 63.5 °F | 40.43 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |