Darlington, Maryland has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 44 °F (low) to 64.6 °F (high). Annual precipitation averages 47.5 Inches. Darlington 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 | 23.3 °F | 40.7 °F | 3.47 in. |
| February | 24.1 °F | 43.3 °F | 2.71 in. |
| March | 31.4 °F | 52.0 °F | 4.23 in. |
| April | 41.9 °F | 64.5 °F | 3.74 in. |
| May | 51.3 °F | 74.2 °F | 3.71 in. |
| June | 60.6 °F | 82.3 °F | 4.51 in. |
| July | 65.6 °F | 86.6 °F | 4.48 in. |
| August | 64.0 °F | 85.4 °F | 4.3 in. |
| September | 57.0 °F | 78.7 °F | 4.58 in. |
| October | 45.1 °F | 67.5 °F | 4.31 in. |
| November | 35.2 °F | 55.0 °F | 3.22 in. |
| December | 28.1 °F | 44.8 °F | 4.22 in. |
| Annual | 44 °F | 64.6 °F | 47.48 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 7a : 0°F to 5°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |