Willards, Maryland has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 8.1 °C (low) to 19.4 °C (high). Annual precipitation averages 1205.5 Millimeters. Willards 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 | -2.9 °C | 7.6 °C | 90.17 mm |
| February | -2.3 °C | 8.9 °C | 78.23 mm |
| March | 1.3 °C | 12.8 °C | 107.7 mm |
| April | 6.7 °C | 18.8 °C | 87.88 mm |
| May | 12 °C | 23.5 °C | 92.46 mm |
| June | 17.2 °C | 28.1 °C | 101.85 mm |
| July | 19.9 °C | 30.8 °C | 110.49 mm |
| August | 18.7 °C | 29.7 °C | 128.02 mm |
| September | 15.4 °C | 26.7 °C | 114.55 mm |
| October | 8.8 °C | 20.9 °C | 107.19 mm |
| November | 3.1 °C | 15 °C | 85.09 mm |
| December | -0.6 °C | 10.1 °C | 101.85 mm |
| Annual | 8.1 °C | 19.4 °C | 1205.48 mm |
| 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 : -15°C to -12.2°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |