Wilmington Manor, Delaware has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 45.8 °F (low) to 63.8 °F (high). Annual precipitation averages 47.1 Inches. Wilmington Manor is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 24.7 °F | 40.4 °F | 3.45 in. |
| February | 25.8 °F | 43.0 °F | 2.9 in. |
| March | 33.0 °F | 51.0 °F | 4.3 in. |
| April | 43.3 °F | 62.9 °F | 3.65 in. |
| May | 53.3 °F | 72.3 °F | 3.73 in. |
| June | 62.7 °F | 81.4 °F | 4.65 in. |
| July | 67.9 °F | 85.9 °F | 4.61 in. |
| August | 66.3 °F | 83.9 °F | 4.2 in. |
| September | 59.3 °F | 77.9 °F | 4.31 in. |
| October | 46.9 °F | 66.1 °F | 3.95 in. |
| November | 36.7 °F | 55.1 °F | 3.18 in. |
| December | 29.7 °F | 45.3 °F | 4.19 in. |
| Annual | 45.8 °F | 63.8 °F | 47.12 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| 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 | Severe Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |