Weather in Wilmington, Delaware, United States
Historical monthly conditions · 2021–2025
Monthly averages
Average daily air-temperature lows/highs and peak wind gusts. Rain is the average monthly total.
| Month | Avg low | Avg high | Rain | Cloud cover | Avg peak gust |
|---|---|---|---|---|---|
| January | -2°C | 5°C | 83.5 mm | 55% | 42.4 km/h |
| February | -1°C | 8°C | 76.8 mm | 58% | 41.7 km/h |
| March | 4°C | 13°C | 106.6 mm | 53% | 45.2 km/h |
| April | 9°C | 18°C | 100.0 mm | 60% | 43.2 km/h |
| May | 13°C | 23°C | 98.6 mm | 63% | 36.4 km/h |
| June | 18°C | 28°C | 103.6 mm | 57% | 34.7 km/h |
| July | 22°C | 30°C | 146.8 mm | 57% | 31.8 km/h |
| August | 20°C | 29°C | 94.2 mm | 55% | 31.8 km/h |
| September | 17°C | 26°C | 102.8 mm | 53% | 33.3 km/h |
| October | 10°C | 20°C | 78.8 mm | 46% | 35.3 km/h |
| November | 4°C | 13°C | 58.6 mm | 45% | 39.9 km/h |
| December | 0°C | 8°C | 102.0 mm | 58% | 38.5 km/h |
Weather match by month
Feels like 15°C–30°C · cloud ≤60% · rain ≤0.1 mm/h · gust ≤50 km/h
Feels-like temperature accounts for humidity and wind in shade. Percentages cover 08:00–20:00 local solar time.
| Month | Match rate | |
|---|---|---|
| January | 0.0% | |
| February | 0.6% | |
| March | 3.2% | |
| April | 11.9% | |
| May | 25.6% | |
| June | 30.1% | |
| July | 15.9% | |
| August | 29.4% | |
| September | 41.2% | |
| October | 26.2% | |
| November | 8.3% | |
| December | 0.0% |
About this location and data
- Urban-centre population
- 127,195
- Elevation
- 51 m
- Coordinates
- 39.75°N, 75.56°W
- Urban area
- 45 km²
Weather averages use 2 ERA5 grid cells, weighted by the area of the urban centre in each cell.
2021-2025 recent-weather sample (not a 30-year normal).
How the weather scores are calculated