Monthly weather forecast and climate
Lewes, DE

Weather in January

January, like December, in Lewes, Delaware, is another cold winter month, with average temperature varying between 41.2°F (5.1°C) and 32°F (0°C). The coldest month is January, with an average high-temperature of 41.2°F (5.1°C) and an average low-temperature of 32°F (0°C). Weather in January »

Weather in February

The last month of the winter, February, is also a wintry month in Lewes, Delaware, with average temperature fluctuating between 34.2°F (1.2°C) and 42.6°F (5.9°C). In February, the average high-temperature is essentially the same as in January - a still wintry 42.6°F (5.9°C). Weather in February »

Weather in March

March, the first month of the spring, in Lewes, is a chilly month, with temperature in the range of an average high of 47.8°F (8.8°C) and an average low of 39.6°F (4.2°C). In Lewes, the average high-temperature is practically the same as in February - a frosty 47.8°F (8.8°C). Weather in March »

Weather in April

April in Lewes, Delaware, is a mild spring month, with average temperature varying between 48.6°F (9.2°C) and 57.6°F (14.2°C). In Lewes, the average high-temperature in April increases, from a frosty 47.8°F (8.8°C) in March, to a moderate 57.6°F (14.2°C). Weather in April »

Weather in May

The last month of the spring, May, is a comfortable month in Lewes, Delaware, with average temperature varying between 66.4°F (19.1°C) and 58.1°F (14.5°C). In May, the average high-temperature marginally rises, from a mild 57.6°F (14.2°C) in April, to an enjoyable 66.4°F (19.1°C). Weather in May »

Weather in June

June, the first month of the summer, in Lewes, is a moderately hot month, with temperature in the range of an average low of 67.6°F (19.8°C) and an average high of 75.4°F (24.1°C). In June, the average high-temperature increases, from a comfortable 66.4°F (19.1°C) in May, to a warm 75.4°F (24.1°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Lewes, Delaware, with average temperature varying between 73°F (22.8°C) and 80.6°F (27°C). The warmest month is July, with an average high-temperature of 80.6°F (27°C) and an average low-temperature of 73°F (22.8°C). In July, the average heat index is evaluated at 85.3°F (29.6°C). Weather in July »

Weather in August

August, the last month of the summer, in Lewes, is also a moderately hot month, with average temperature varying between 72.1°F (22.3°C) and 79.5°F (26.4°C). In Lewes, the average high-temperature is almost the same as in July - a still moderately hot 79.5°F (26.4°C). Weather in August »

Weather in September

September, the first month of the autumn, in Lewes, is also a moderately hot month, with temperature in the range of an average high of 74.1°F (23.4°C) and an average low of 67.3°F (19.6°C). In September, the average high-temperature marginally drops, from a moderately hot 79.5°F (26.4°C) in August, to a still warm 74.1°F (23.4°C). Weather in September »

Weather in October

October, the same as September, is another comfortable autumn month in Lewes, Delaware, with average temperature fluctuating between 57.9°F (14.4°C) and 65.3°F (18.5°C). In October, the average high-temperature slightly decreases, from a warm 74.1°F (23.4°C) in September, to an enjoyable 65.3°F (18.5°C). Weather in October »

Weather in November

November, the last month of the autumn, in Lewes, is also a fresh month, with average temperature fluctuating between 54.5°F (12.5°C) and 46.4°F (8°C). In November, the average high-temperature drops, from a comfortable 65.3°F (18.5°C) in October, to a cool 54.5°F (12.5°C). Weather in November »

Weather in December

The first month of the winter, December, is also a frosty month in Lewes, Delaware, with average temperature ranging between max 46.9°F (8.3°C) and min 39.2°F (4°C). In Lewes, the average high-temperature in December slightly decreases, from a fresh 54.5°F (12.5°C) in November, to a frosty 46.9°F (8.3°C). Weather in December »
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FAQ

What is the coldest month in Lewes?

With an average high-temperature of 41.2°F (5.1°C) and an average low-temperature of 32°F (0°C), January is the coldest month in Lewes.

What is the driest month in Lewes?

January is the month with the least rainfall in Lewes, Delaware. Rain falls for 9.6 days and accumulates 2.2" (56mm) of precipitation.

How much does it rain in Lewes?

In Lewes, Delaware, during the entire year, the rain falls for 173.6 days and collects up to 36.97" (939mm) of precipitation.

When does it snow in Lewes?

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

What is the snowiest month in Lewes?

January is the month with the most snowfall in Lewes, Delaware. Snow falls for 3.7 days and accumulates 0.98" (25mm) of snow.

How many days does it snow in Lewes?

Throughout the year, in Lewes, there are 10.1 snowfall days, and 3.39" (86mm) of snow is accumulated.

When is the lowest UV index in Lewes?

Months with the lowest UV index are January and December, with an average maximum UV index of 2.

What is the month with the coldest ocean in Lewes?

With an average ocean temperature of 40.6°F (4.8°C), February is the month with the coldest seawater in Lewes, Delaware.

What is the month with the least sunshine in Lewes?

With an average of 5h of sunshine, February has the least sunshine of the year in Lewes, Delaware.

When it does not snow in Lewes?

April through October are months without snowfall.

What is the most humid month in Lewes?

May is the most humid month in Lewes, with an average relative humidity of 81%.

What is the month with the highest UV index in Lewes?

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

When are the longest days in Lewes?

With an average of 14.9h of daylight, June has the longest days of the year in Lewes, Delaware.

What is the warmest month in Lewes?

The warmest month in Lewes is July, with an average high-temperature of 80.6°F (27°C) and an average low-temperature of 73°F (22.8°C).

What month has the most sunshine in Lewes?

With an average of 11h of sunshine, July has the most sunshine of the year in Lewes.

What is the rainiest month in Lewes?

August is the month with the most rainfall. Rain falls for 18.2 days and accumulates 4.13" (105mm) of precipitation.

What month is the ocean warmest in Lewes?

The month with the warmest seawater is August, with an average ocean temperature of 77°F (25°C).

What is the least humid month in Lewes?

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

What is the month with the shortest days in Lewes?

With an average of 9.5h of daylight, December has the shortest days of the year in Lewes.

Average pressure
Lewes, DE

Average pressure - Lewes, DE

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

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Average wind speed
Lewes, DE

Average wind speed - Lewes, DE

The windiest month (with the highest average wind speed) is January (12.5mph).
The calmest month (with the lowest average wind speed) is August (8.3mph).

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Average rainfall
Lewes, DE

Average rainfall - Lewes, DE

The wettest month (with the highest rainfall) is August (4.13").
The driest month (with the least rainfall) is January (2.2").

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Average rainfall days
Lewes, DE

Average rainfall days - Lewes, DE

The month with the highest number of rainy days is July (18.6 days).
The month with the least rainy days is January (9.6 days).

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Average snowfall
Lewes, DE

Average snowfall - Lewes, DE

The month with the highest snowfall is January (0.98").
Months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days
Lewes, DE

Average snowfall days - Lewes, DE

The month with the highest number of snowfall days is January (3.7 days).
Months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average sea temperature
Lewes, DE

Average sea temperature - Lewes, DE

The best month for swimming (with the highest average sea temperature) is August (76.9°F).
The coldest month (with the lowest average sea temperature) is February (40.7°F).

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Average daylight / Average sunshine
Lewes, DE

Average daylight / Average sunshine - Lewes, DE

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.5h).

The month with the most sunshine is July (Average sunshine: 11h).
The month with the least sunshine is February (Average sunshine: 5h).

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Average sunshine days
Lewes, DE

Average sunshine days - Lewes, DE

The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is May (9.8 days).

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Average visibility
Lewes, DE

Average visibility - Lewes, DE

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

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