Laurel, Delaware has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 8 °C (low) to 19.3 °C (high). Annual precipitation averages 1195.3 Millimeters. Laurel 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 | -3.1 °C | 7.3 °C | 88.39 mm |
| February | -2.5 °C | 8.7 °C | 75.18 mm |
| March | 1.1 °C | 12.7 °C | 105.41 mm |
| April | 6.7 °C | 18.7 °C | 89.92 mm |
| May | 12.1 °C | 23.6 °C | 95 mm |
| June | 17.3 °C | 28.3 °C | 107.44 mm |
| July | 19.9 °C | 30.8 °C | 110.24 mm |
| August | 18.7 °C | 29.7 °C | 123.44 mm |
| September | 15.3 °C | 26.7 °C | 115.32 mm |
| October | 8.8 °C | 20.7 °C | 103.12 mm |
| November | 2.8 °C | 14.8 °C | 85.85 mm |
| December | -0.7 °C | 9.8 °C | 96.01 mm |
| Annual | 8 °C | 19.3 °C | 1195.32 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 7a : -17.8°C to -15°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |