Climate and monthly weather forecast
Wilmington, DE

Bright neon lights light up the Central Business District of Wilmington, Delaware, with a scenic reflection in the Christian River
Bright neon lights light up the Central Business District of Wilmington, Delaware, with a scenic reflection in the Christian River

Weather in January

January, like December, in Wilmington, Delaware, is another cold winter month, with an average temperature fluctuating between 37°F (2.8°C) and 25.3°F (-3.7°C). January is the coldest month, with an average high-temperature of 37°F (2.8°C) and an average low-temperature of 25.3°F (-3.7°C). Weather in January »

Weather in February

The last month of the winter, February, is also a wintry month in Wilmington, Delaware, with an average temperature ranging between max 40.8°F (4.9°C) and min 27.7°F (-2.4°C). In Wilmington, the average high-temperature in February is essentially the same as in January - a still wintry 40.8°F (4.9°C). Weather in February »

Weather in March

March, the first month of the spring in Wilmington, is a frosty month, with temperature in the range of an average high of 49.3°F (9.6°C) and an average low of 34.7°F (1.5°C). In Wilmington, the average high-temperature in March slightly increases from a wintry 40.8°F (4.9°C) in February to a frosty 49.3°F (9.6°C). Weather in March »

Weather in April

April in Wilmington, Delaware, is an enjoyable spring month, with an average temperature ranging between max 61.3°F (16.3°C) and min 44.6°F (7°C). In Wilmington, the average high-temperature in April rises from a chilly 49.3°F (9.6°C) in March to a comfortable 61.3°F (16.3°C). Weather in April »

Weather in May

The last month of the spring, May, is an agreeable month in Wilmington, Delaware, with an average temperature varying between 71.6°F (22°C) and 54.5°F (12.5°C). In Wilmington, the average high-temperature in May rises from an enjoyable 61.3°F (16.3°C) in April to an agreeable 71.6°F (22°C). Weather in May »

Weather in June

June, the first month of the summer in Wilmington, is a moderately hot month, with temperature in the range of an average high of 79.5°F (26.4°C) and an average low of 62.8°F (17.1°C). In June, the average high-temperature marginally rises from an agreeable 71.6°F (22°C) in May to a warm 79.5°F (26.4°C). Weather in June »

Weather in July

July, like June, in Wilmington, Delaware, is a moderately hot summer month, with an average temperature varying between 68.4°F (20.2°C) and 84.9°F (29.4°C). With an average high-temperature of 84.9°F (29.4°C) and an average low-temperature of 68.4°F (20.2°C), July is the warmest month. In July, the average heat index is estimated at a hot 93.2°F (34°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Wilmington, Delaware, with an average temperature varying between 66.7°F (19.3°C) and 82.9°F (28.3°C). In Wilmington, the average high-temperature in August is almost the same as in July - a still warm 82.9°F (28.3°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Wilmington, Delaware, with an average temperature varying between 76.3°F (24.6°C) and 59.9°F (15.5°C). In September, the average high-temperature slightly decreases from a warm 82.9°F (28.3°C) in August to a still moderately hot 76.3°F (24.6°C). Weather in September »

Weather in October

October, the same as September, is another comfortable autumn month in Wilmington, Delaware, with an average temperature fluctuating between 50.2°F (10.1°C) and 64.6°F (18.1°C). In Wilmington, the average high-temperature in October decreases from a warm 76.3°F (24.6°C) in September to a comfortable 64.6°F (18.1°C). Weather in October »

Weather in November

The last month of the autumn, November, is another cool month in Wilmington, Delaware, with an average temperature ranging between min 38.8°F (3.8°C) and max 52.2°F (11.2°C). In Wilmington, the average high-temperature in November decreases from a comfortable 64.6°F (18.1°C) in October to a fresh 52.2°F (11.2°C). Weather in November »

Weather in December

December, the first month of the winter in Wilmington, is still a chilly month, with temperature in the range of an average low of 32.7°F (0.4°C) and an average high of 43.7°F (6.5°C). In December, the average high-temperature slightly decreases from a cool 52.2°F (11.2°C) in November to a chilly 43.7°F (6.5°C). Weather in December »
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FAQ

What is the coldest month in Wilmington?

January is the coldest month, with an average high-temperature of 37°F (2.8°C) and an average low-temperature of 25.3°F (-3.7°C).

What is the driest month in Wilmington?

The month with the least rainfall in Wilmington, Delaware, is January, when the rain falls for 9.3 days and typically collects 2.36" (60mm) of precipitation.

How many days does it rain in Wilmington?

Throughout the year, there are 168.9 rainfall days, and 35.55" (903mm) of precipitation is accumulated.

When does it snow in Wilmington?

January through May, October through December are months with snowfall in Wilmington.

How much does it snow in Wilmington?

In Wilmington, during the entire year, snow falls for 21.9 days and aggregates up to 12.05" (306mm) of snow.

What is the month with the lowest UV index in Wilmington?

The months with the lowest UV index in Wilmington are January, February, November and December, with an average maximum UV index of 2.

What month is the ocean coldest in Wilmington?

The month with the coldest seawater in Wilmington is February, with an average ocean temperature of 33.8°F (1°C).

What is the month with the least sunshine in Wilmington?

The month with the least sunshine in Wilmington is February, with an average of 4.9h of sunshine.

What is the snowiest month in Wilmington?

March is the month with the most snowfall in Wilmington. Snow falls for 4.7 days and accumulates 3.58" (91mm) of snow.

When is Daylight Saving Time (DST) in Wilmington?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 6. 2022, at 2:00 am, and the time zone reverts from EDT to EST.

What is the least humid month in Wilmington?

The least humid month in Wilmington is April, with an average relative humidity of 72%.

When is the highest UV index in Wilmington?

May through August, with an average maximum UV index of 6, are months with the highest UV index.

When it does not snow in Wilmington?

In Wilmington, Delaware, snow does not fall in June through September.

When are the longest days in Wilmington?

With an average of 14h and 56min of daylight, June has the longest days of the year in Wilmington, Delaware.

What is the warmest month in Wilmington?

July is the warmest month in Wilmington, with an average high-temperature of 84.9°F (29.4°C) and an average low-temperature of 68.4°F (20.2°C).

What month has the most sunshine in Wilmington?

With an average of 10.6h of sunshine, July has the most sunshine of the year in Wilmington.

What is the wettest month in Wilmington?

The month with the most rainfall in Wilmington is August, when the rain falls for 17.3 days and typically aggregates up to 4.09" (104mm) of precipitation.

When is the ocean warmest in Wilmington?

August is the month with the warmest seawater in Wilmington, with an average ocean temperature of 73.4°F (23°C).

What is the most humid month in Wilmington?

The most humid month in Wilmington, Delaware, is October, with an average relative humidity of 78%.

What is the month with the shortest days in Wilmington?

The month with the shortest days is December, with an average of 9h and 25min of daylight.

Average temperature
Wilmington, DE

Average temperature - Wilmington, DE

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (37°F).

The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (25.3°F).

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Average pressure
Wilmington, DE

Average pressure - Wilmington, DE

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed
Wilmington, DE

Average wind speed - Wilmington, DE

The windiest months (with the highest average wind speed) are January, February and March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

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Average rainfall
Wilmington, DE

Average rainfall - Wilmington, DE

The wettest month (with the highest rainfall) is August (4.09").
The driest month (with the least rainfall) is January (2.36").

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Average rainfall days
Wilmington, DE

Average rainfall days - Wilmington, DE

The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is November (8.8 days).

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Average snowfall
Wilmington, DE

Average snowfall - Wilmington, DE

The month with the highest snowfall is March (3.58").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Wilmington, DE

Average snowfall days - Wilmington, DE

The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average sea temperature
Wilmington, DE

Average sea temperature - Wilmington, DE

The best month for swimming (with the highest average sea temperature) is August (73°F).
The coldest month (with the lowest average sea temperature) is February (34°F).

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Average daylight / Average sunshine
Wilmington, DE

Average daylight / Average sunshine - Wilmington, DE

The month with the longest days is June (Average daylight: 14h and 56min).
The month with the shortest days is December (Average daylight: 9h and 25min).

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

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Average sunshine days
Wilmington, DE

Average sunshine days - Wilmington, DE

The month with the most sunshine days is November (18.6 days).
The months with the least sunshine days are May and July (9.8 days).

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Average UV index
Wilmington, DE

Average UV index - Wilmington, DE

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average visibility
Wilmington, DE

Average visibility - Wilmington, DE

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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