Climate and monthly weather forecast
Dewey Beach, DE

Weather in January

January, like December, in Dewey Beach, Delaware, is another cold winter month, with temperature in the range of an average high of 41.4°F (5.2°C) and an average low of 33.1°F (0.6°C). With an average high-temperature of 41.4°F (5.2°C) and an average low-temperature of 33.1°F (0.6°C), January is the coldest month. Weather in January »

Weather in February

The last month of the winter, February, is also a wintry month in Dewey Beach, Delaware, with an average temperature ranging between min 34.3°F (1.3°C) and max 42.6°F (5.9°C). In February, the average high-temperature is practically the same as in January - a still cold 42.6°F (5.9°C). Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in Dewey Beach, Delaware, with temperature in the range of an average high of 47.3°F (8.5°C) and an average low of 39.7°F (4.3°C). In Dewey Beach, Delaware, the average high-temperature in March is practically the same as in February - a chilly 47.3°F (8.5°C). Weather in March »

Weather in April

April in Dewey Beach, Delaware, is a mild spring month, with an average temperature fluctuating between 48.7°F (9.3°C) and 56.5°F (13.6°C). In April, the average high-temperature increases from a frosty 47.3°F (8.5°C) in March to a mild 56.5°F (13.6°C). Weather in April »

Weather in May

The last month of the spring, May, is a comfortable month in Dewey Beach, Delaware, with temperature in the range of an average high of 65.5°F (18.6°C) and an average low of 58.5°F (14.7°C). In May, the average high-temperature increases from a mild 56.5°F (13.6°C) in April to an enjoyable 65.5°F (18.6°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Dewey Beach, Delaware, with temperature in the range of an average high of 74.5°F (23.6°C) and an average low of 67.6°F (19.8°C). In Dewey Beach, the average high-temperature in June increases from a comfortable 65.5°F (18.6°C) in May to a moderately hot 74.5°F (23.6°C). Weather in June »

Weather in July

July, like June, in Dewey Beach, Delaware, is a moderately hot summer month, with temperature in the range of an average low of 73.6°F (23.1°C) and an average high of 80.2°F (26.8°C). With an average high-temperature of 80.2°F (26.8°C) and an average low-temperature of 73.6°F (23.1°C), July is the warmest month. Weather in July »

Weather in August

August, the last month of the summer in Dewey Beach, is also a moderately hot month, with an average temperature ranging between min 73°F (22.8°C) and max 79.2°F (26.2°C). In August, the average high-temperature is practically the same as in July - a still warm 79.2°F (26.2°C). Weather in August »

Weather in September

September, the first month of the autumn in Dewey Beach, is also a moderately hot month, with an average temperature fluctuating between 67.8°F (19.9°C) and 74.1°F (23.4°C). In September, the average high-temperature is practically the same as in August - a still moderately hot 74.1°F (23.4°C). Weather in September »

Weather in October

October, like September, in Dewey Beach, Delaware, is another enjoyable autumn month, with an average temperature fluctuating between 58.1°F (14.5°C) and 65.3°F (18.5°C). In Dewey Beach, Delaware, the average high-temperature in October marginally drops from a moderately hot 74.1°F (23.4°C) in September to a comfortable 65.3°F (18.5°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a fresh month in Dewey Beach, Delaware, with temperature in the range of an average low of 46.8°F (8.2°C) and an average high of 54.5°F (12.5°C). In November, the average high-temperature decreases from an enjoyable 65.3°F (18.5°C) in October to a fresh 54.5°F (12.5°C). Weather in November »

Weather in December

December, the first month of the winter in Dewey Beach, is also a frosty month, with an average temperature fluctuating between 39.4°F (4.1°C) and 47.3°F (8.5°C). In December, the average high-temperature marginally drops from a fresh 54.5°F (12.5°C) in November to a frosty 47.3°F (8.5°C). Weather in December »
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FAQ

What is the coldest month in Dewey Beach?

January is the coldest month in Dewey Beach, Delaware, with an average high-temperature of 41.4°F (5.2°C) and an average low-temperature of 33.1°F (0.6°C).

How many days does it rain in Dewey Beach?

In Dewey Beach, Delaware, during the entire year, the rain falls for 89.4 days and collects up to 6.18" (157mm) of precipitation.

When does it snow in Dewey Beach?

Months with snowfall are January through March, November and December.

When does it snow the most in Dewey Beach?

The months with the most snowfall in Dewey Beach are January and December, with an average 0.12" (3mm) of accumulated snow.

How much does it snow in Dewey Beach?

In Dewey Beach, Delaware, during the entire year, snow falls for 7.3 days and aggregates up to 0.43" (11mm) of snow.

What is the month with the lowest UV index in Dewey Beach?

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

What is the month with the least sunshine in Dewey Beach?

February has the least sunshine of the year, with an average of 5h of sunshine.

When is Daylight Saving Time (DST) in Dewey Beach?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts in Dewey Beach, Delaware, 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.

When it does not snow in Dewey Beach?

April through October are months without snowfall.

What is the most humid month in Dewey Beach?

May is the most humid month, with an average relative humidity of 82%.

What are the months with the highest UV index in Dewey Beach?

The months with the highest UV index in Dewey Beach, Delaware, are May through August, with an average maximum UV index of 6.

When are the longest days in Dewey Beach?

With an average of 14h and 50min of daylight, June has the longest days of the year in Dewey Beach, Delaware.

What is the warmest month in Dewey Beach?

The warmest month in Dewey Beach is July, with an average high-temperature of 80.2°F (26.8°C) and an average low-temperature of 73.6°F (23.1°C).

What month has the most sunshine in Dewey Beach?

July has the most sunshine of the year in Dewey Beach, with an average of 11.1h of sunshine.

What is the driest month in Dewey Beach?

The month with the least rainfall is September, when the rain falls for 7.5 days and typically collects 0.28" (7mm) of precipitation.

What is the rainiest month in Dewey Beach?

The month with the most rainfall in Dewey Beach, Delaware, is October, when the rain falls for 6.8 days and typically aggregates up to 0.71" (18mm) of precipitation.

What is the least humid month in Dewey Beach?

With an average relative humidity of 73%, November is the least humid month in Dewey Beach, Delaware.

What is the month with the shortest days in Dewey Beach?

With an average of 9h and 31min of daylight, December has the shortest days of the year in Dewey Beach.

Average temperature
Dewey Beach, DE

Average temperature - Dewey Beach, DE

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (41.4°F).

The month with the highest average low temperature is July (73.6°F).
The coldest month (with the lowest average low temperature) is January (33.1°F).

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Average pressure
Dewey Beach, DE

Average pressure - Dewey Beach, 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
Dewey Beach, DE

Average wind speed - Dewey Beach, DE

The windiest month (with the highest average wind speed) is January (13mph).
The calmest month (with the lowest average wind speed) is August (8.8mph).

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Average rainfall
Dewey Beach, DE

Average rainfall - Dewey Beach, DE

The wettest month (with the highest rainfall) is October (0.71").
The driest month (with the least rainfall) is September (0.28").

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Average rainfall days
Dewey Beach, DE

Average rainfall days - Dewey Beach, DE

The month with the highest number of rainy days is July (10.2 days).
The month with the least rainy days is November (4.9 days).

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Average snowfall
Dewey Beach, DE

Average snowfall - Dewey Beach, DE

The months with the highest snowfall are January and December (0.12").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days
Dewey Beach, DE

Average snowfall days - Dewey Beach, DE

The month with the highest number of snowfall days is January (2.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight / Average sunshine
Dewey Beach, DE

Average daylight / Average sunshine - Dewey Beach, DE

The month with the longest days is June (Average daylight: 14h and 50min).
The month with the shortest days is December (Average daylight: 9h and 31min).

The month with the most sunshine is July (Average sunshine: 11.1h).
The month with the least sunshine is February (Average sunshine: 5h).

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Average sunshine days
Dewey Beach, DE

Average sunshine days - Dewey Beach, DE

The month with the most sunshine days is January (23.5 days).
The months with the least sunshine days are June and July (18.2 days).

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Average UV index
Dewey Beach, DE

Average UV index - Dewey Beach, 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 and December (UV index 2).

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Average visibility
Dewey Beach, DE

Average visibility - Dewey Beach, 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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