Current Weather and Forecast in Wilmington, DE
Delaware, United States 🇺🇸
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About the weather in Wilmington
Wilmington has a humid subtropical climate. July is the warmest month, with average highs of 86°, and January the coldest, when nights fall to around 28°. August brings the most rain, on about 14 days, while July is the sunniest, with 11.7 hours of sunshine a day. Over a whole year it rains on roughly 131 days.
Wilmington climate guide: monthly averages, seasons and the best time to visit
Common questions
Which month is coolest in Wilmington?
January, with highs of 42°F (5°C) and lows near 28°F (-2°C). The coldest day in the 2015-2024 record fell to -1°F (-18°C).
Is there snow in Wilmington?
Yes - about 8 days a year carry measurable snowfall, concentrated December through March.
What is the best month to go to Wilmington?
Aim for April to May and September to October if you get the choice: warm days, manageable rainfall and plenty of daylight line up, and highs average 70°F (21°C) against roughly 10 wet days a month. For the same question asked the other way round, see where else is warm in April.
What is the rainiest month in Wilmington?
August, at 5.5 inches (140 mm) over about 14 days. November is the driest month, at 3.1 inches (79 mm).
Is Wilmington hot in summer?
July averages 86°F (30°C). Hot afternoons happen but extremes are not the norm.
When is Wilmington at its hottest?
July, averaging 86°F (30°C) by day and 70°F (21°C) overnight. The hottest single day in our 2015-2024 record for this location reached 98°F (36°C).
Is Wilmington humid?
Relative humidity averages 69% across the year, which reads as fairly humid. Paired with July heat, muggy afternoons are routine.
What should I pack for Wilmington?
It depends on the month: July runs to 86°F (30°C) while January holds at 42°F (5°C). The full month-by-month breakdown is in the packing notes above.