Monthly weather forecast and climate
Port Penn, DE

Weather in January

January, like December, in Port Penn, Delaware, is a wintry winter month, with temperature in the range of an average high of 38.7°F (3.7°C) and an average low of 27°F (-2.8°C). The coldest month is January, with an average high-temperature of 38.7°F (3.7°C) and an average low-temperature of 27°F (-2.8°C). Weather in January »

Weather in February

February, the last month of the winter, in Port Penn, is also a wintry month, with average temperature varying between 29.7°F (-1.3°C) and 42.3°F (5.7°C). In Port Penn, the average high-temperature is almost the same as in January - a still cold 42.3°F (5.7°C). Weather in February »

Weather in March

March, the first month of the spring, in Port Penn, is a cool month, with average temperature varying between 35.8°F (2.1°C) and 50.2°F (10.1°C). In Port Penn, the average high-temperature marginally rises, from a wintry 42.3°F (5.7°C) in February, to a cool 50.2°F (10.1°C). Weather in March »

Weather in April

April is a comfortable spring month in Port Penn, Delaware, with average temperature fluctuating between 62.6°F (17°C) and 46°F (7.8°C). In Port Penn, the average high-temperature in April rises, from a cool 50.2°F (10.1°C) in March, to a comfortable 62.6°F (17°C). Weather in April »

Weather in May

May, the last month of the spring, in Port Penn, is a pleasant month, with average temperature varying between 72.1°F (22.3°C) and 55.4°F (13°C). In May, the average high-temperature increases, from an enjoyable 62.6°F (17°C) in April, to a pleasant 72.1°F (22.3°C). Weather in May »

Weather in June

June, the first month of the summer, in Port Penn, is a moderately hot month, with temperature in the range of an average high of 80.2°F (26.8°C) and an average low of 63.3°F (17.4°C). In Port Penn, the average high-temperature in June marginally rises, from a pleasant 72.1°F (22.3°C) in May, to a warm 80.2°F (26.8°C). Weather in June »

Weather in July

July, like June, in Port Penn, Delaware, is a moderately hot summer month, with average temperature fluctuating between 85.1°F (29.5°C) and 68.5°F (20.3°C). The warmest month is July, with an average high-temperature of 85.1°F (29.5°C) and an average low-temperature of 68.5°F (20.3°C). In July, the average heat index is evaluated at a torrid 95.4°F (35.2°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Port Penn, Delaware, with average temperature fluctuating between 83.5°F (28.6°C) and 67.3°F (19.6°C). In August, the average high-temperature is relatively the same as in July - a still moderately hot 83.5°F (28.6°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Port Penn, Delaware, with average temperature varying between 77°F (25°C) and 61.2°F (16.2°C). In September, the average high-temperature slightly decreases, from 83.5°F (28.6°C) in August, to a still moderately hot 77°F (25°C). Weather in September »

Weather in October

October, like September, in Port Penn, Delaware, is another enjoyable autumn month, with average temperature varying between 51.8°F (11°C) and 65.3°F (18.5°C). In Port Penn, Delaware, the average high-temperature drops, from a warm 77°F (25°C) in September, to a comfortable 65.3°F (18.5°C). Weather in October »

Weather in November

November, the last month of the autumn, in Port Penn, is another cool month, with average temperature ranging between min 40.1°F (4.5°C) and max 53.8°F (12.1°C). In Port Penn, the average high-temperature decreases, from an enjoyable 65.3°F (18.5°C) in October, to a fresh 53.8°F (12.1°C). Weather in November »

Weather in December

The first month of the winter, December, is still a chilly month in Port Penn, Delaware, with temperature in the range of an average high of 45°F (7.2°C) and an average low of 34°F (1.1°C). In Port Penn, the average high-temperature in December slightly decreases, from a cool 53.8°F (12.1°C) in November, to a chilly 45°F (7.2°C). Weather in December »
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FAQ

What is the coldest month in Port Penn?

With an average high-temperature of 38.7°F (3.7°C) and an average low-temperature of 27°F (-2.8°C), January is the coldest month.

How much does it rain in Port Penn?

Throughout the year, there are 147.7 rainfall days, and 27.8" (706mm) of precipitation is accumulated.

What is the driest month in Port Penn?

The month with the least rainfall in Port Penn, Delaware, is January when the rain falls for 8.9 days and typically collects 1.77" (45mm) of precipitation.

When does it snow in Port Penn?

January through May, November and December are months with snowfall in Port Penn, Delaware.

How many days does it snow in Port Penn?

In Port Penn, Delaware, during the entire year, snow falls for 13.8 days, and aggregates up to 6.65" (169mm) of snow.

When is the lowest UV index in Port Penn?

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

What is the month with the least sunshine in Port Penn?

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

What is the snowiest month in Port Penn?

March is the month with the most snowfall. Snow falls for 2.6 days and accumulates 2.32" (59mm) of snow.

What is the least humid month in Port Penn?

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

What are the most humid months in Port Penn?

May, June, September and October, with an average relative humidity of 77%, are most humid months.

When is the highest UV index in Port Penn?

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

When it does not snow in Port Penn?

June through October are months without snowfall in Port Penn.

When are the longest days in Port Penn?

The month with the longest days in Port Penn, Delaware, is June, with an average of 14.9h of daylight.

What is the warmest month in Port Penn?

July is the warmest month in Port Penn, with an average high-temperature of 85.1°F (29.5°C) and an average low-temperature of 68.5°F (20.3°C).

What month has the most sunshine in Port Penn?

The month with the most sunshine in Port Penn is July, with an average of 10.7h of sunshine.

What is the rainiest month in Port Penn?

August is the month with the most rainfall in Port Penn, Delaware. Rain falls for 15 days and accumulates 3.23" (82mm) of precipitation.

What is the month with the shortest days in Port Penn?

December has the shortest days of the year, with an average of 9.4h of daylight.

Average pressure
Port Penn, DE

Average pressure - Port Penn, 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
Port Penn, DE

Average wind speed - Port Penn, DE

The windiest months (with the highest average wind speed) are February, March and April (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

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Average humidity
Port Penn, DE

Average humidity - Port Penn, DE

Months with the highest relative humidity are May, June, September and October (77%).
The month with the lowest relative humidity is April (72%).

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Average rainfall
Port Penn, DE

Average rainfall - Port Penn, DE

The wettest month (with the highest rainfall) is August (3.23").
The driest month (with the least rainfall) is January (1.77").

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Average rainfall days
Port Penn, DE

Average rainfall days - Port Penn, DE

The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is November (8 days).

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Average snowfall
Port Penn, DE

Average snowfall - Port Penn, DE

The month with the highest snowfall is March (2.32").
Months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days
Port Penn, DE

Average snowfall days - Port Penn, DE

The month with the highest number of snowfall days is January (4.2 days).
Months with the least snowfall days are June, July, August, September and October (0 days).

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Average daylight / Average sunshine
Port Penn, DE

Average daylight / Average sunshine - Port Penn, DE

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.4h).

The month with the most sunshine is July (Average sunshine: 10.7h).
The month with the least sunshine is February (Average sunshine: 4.9h).

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Average sunshine days
Port Penn, DE

Average sunshine days - Port Penn, DE

The month with the most sunshine days is November (20.6 days).
Months with the least sunshine days are May and July (11.8 days).

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Average UV index
Port Penn, DE

Average UV index - Port Penn, DE

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

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Average visibility
Port Penn, DE

Average visibility - Port Penn, 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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