Monthly weather forecast and climate
Nassau, DE

Weather in January

January, like December, in Nassau, Delaware, is another cold winter month, with temperature in the range of an average low of 32°F (0°C) and an average high of 41.2°F (5.1°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 Nassau, Delaware, with average temperature ranging between min 34.2°F (1.2°C) and max 42.6°F (5.9°C). In February, the average high-temperature is almost the same as in January - a still wintry 42.6°F (5.9°C). Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in Nassau, Delaware, with average temperature ranging between min 39.6°F (4.2°C) and max 47.8°F (8.8°C). In March, the average high-temperature is almost the same as in February - a chilly 47.8°F (8.8°C). Weather in March »

Weather in April

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

Weather in May

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

Weather in June

The first month of the summer, June, is a warm month in Nassau, Delaware, with average temperature ranging between max 75.4°F (24.1°C) and min 67.6°F (19.8°C). In June, the average high-temperature rises, from an enjoyable 66.4°F (19.1°C) in May, to a moderately hot 75.4°F (24.1°C). Weather in June »

Weather in July

July, like June, in Nassau, Delaware, is a moderately hot summer month, with temperature in the range of an average high of 80.6°F (27°C) and an average low of 73°F (22.8°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 calculated to 85.3°F (29.6°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Nassau, Delaware, with average temperature varying between 72.1°F (22.3°C) and 79.5°F (26.4°C). In Nassau, 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 Nassau, is also a moderately hot month, with average temperature varying between 74.1°F (23.4°C) and 67.3°F (19.6°C). In September, the average high-temperature slightly decreases, from 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 Nassau, Delaware, with average temperature fluctuating between 65.3°F (18.5°C) and 57.9°F (14.4°C). In Nassau, the average high-temperature slightly decreases, from a warm 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 another cool month in Nassau, Delaware, with average temperature fluctuating between 46.4°F (8°C) and 54.5°F (12.5°C). In November, the average high-temperature drops, from a comfortable 65.3°F (18.5°C) in October, to a fresh 54.5°F (12.5°C). Weather in November »

Weather in December

The first month of the winter, December, is still a chilly month in Nassau, Delaware, with average temperature fluctuating between 46.9°F (8.3°C) and 39.2°F (4°C). In December, the average high-temperature marginally drops, from a fresh 54.5°F (12.5°C) in November, to a chilly 46.9°F (8.3°C). Weather in December »
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FAQ

What is the coldest month in Nassau?

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.

How many days does it rain in Nassau?

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

What is the driest month in Nassau?

The month with the least rainfall in Nassau, Delaware, is January when the rain falls for 9.6 days and typically collects 2.2" (56mm) of precipitation.

When does it snow in Nassau?

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

How many days does it snow in Nassau?

In Nassau, Delaware, during the entire year, snow falls for 10.1 days, and aggregates up to 3.39" (86mm) of snow.

When does it snow the most in Nassau?

The month with the most snowfall in Nassau is January when snow falls for 3.7 days and typically aggregates up to 0.98" (25mm) of snow.

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

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

What is the month with the least sunshine in Nassau?

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

When it does not snow in Nassau?

April through October are months without snowfall.

What is the most humid month in Nassau?

With an average relative humidity of 81%, May is the most humid month in Nassau, Delaware.

When is the highest UV index in Nassau?

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

When are the longest days in Nassau?

June has the longest days of the year, with an average of 14.8h of daylight.

What is the warmest month in Nassau?

The warmest month in Nassau, Delaware, 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 Nassau?

July has the most sunshine of the year, with an average of 11h of sunshine.

What is the rainiest month in Nassau?

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

What is the least humid month in Nassau?

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

What is the month with the shortest days in Nassau?

December has the shortest days of the year in Nassau, Delaware, with an average of 9.5h of daylight.

Average pressure
Nassau, DE

Average pressure - Nassau, 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
Nassau, DE

Average wind speed - Nassau, 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
Nassau, DE

Average rainfall - Nassau, 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
Nassau, DE

Average rainfall days - Nassau, 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
Nassau, DE

Average snowfall - Nassau, 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
Nassau, DE

Average snowfall days - Nassau, 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 daylight / Average sunshine
Nassau, DE

Average daylight / Average sunshine - Nassau, DE

The month with the longest days is June (Average daylight: 14.8h).
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
Nassau, DE

Average sunshine days - Nassau, 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
Nassau, DE

Average visibility - Nassau, 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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