Climate and monthly weather forecast
Port Penn, DE

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Weather in January

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

Weather in February

The last month of the winter, February, is also a wintry month in Port Penn, Delaware, with an average temperature varying between 29.7°F (-1.3°C) and 42.3°F (5.7°C). The initiation of February records an average high-temperature of a still wintry 42.3°F (5.7°C), displaying a near consistency with the previous month. Weather in February »

Weather in March

March, the first month of the spring in Port Penn, is a fresh month, with an average temperature fluctuating between 50.2°F (10.1°C) and 35.8°F (2.1°C). The embrace of March brings a minor uplift in the average high-temperature, shifting from an icy 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 refreshing spring month in Port Penn, Delaware, with an average temperature ranging between max 62.6°F (17°C) and min 46°F (7.8°C). In April, the average high-temperature increases from a cool 50.2°F (10.1°C) in March to a refreshing 62.6°F (17°C). Weather in April »

Weather in May

May, the last month of the spring in Port Penn, is an agreeable month, with an average temperature ranging between max 72.1°F (22.3°C) and min 55.4°F (13°C). The shift from April to May brings an increase in the average high-temperature, moving from an enjoyable 62.6°F (17°C) to an agreeable 72.1°F (22.3°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Port Penn, Delaware, with an average temperature ranging between max 80.2°F (26.8°C) and min 63.3°F (17.4°C). The arrival of June signals a slight increase in the average high-temperature, moving 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 temperature in the range of an average low of 68.5°F (20.3°C) and an average high of 85.1°F (29.5°C). July, known for its average high temperature of 85.1°F (29.5°C) and an average low temperature of 68.5°F (20.3°C), is the warmest month. During July, the heat index is calculated to be a sweltering 95°F (35°C). Weather in July »

Weather in August

August, the last month of the summer in Port Penn, is also a moderately hot month, with an average temperature varying between 83.5°F (28.6°C) and 67.3°F (19.6°C). Port Penn experiences a recorded average high-temperature of a still warm 83.5°F (28.6°C) in August, closely aligned with July's 85.1°F (29.5°C). Weather in August »

Weather in September

September, the first month of the autumn in Port Penn, is also a moderately hot month, with an average temperature ranging between min 61.2°F (16.2°C) and max 77°F (25°C). A minor decrease in the average high-temperature is observed during September, shifting 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 comfortable autumn month, with an average temperature ranging between min 51.8°F (11°C) and max 65.3°F (18.5°C). With the onset of October, Port Penn's average high-temperature adjusts, receding from September's moderately hot 77°F (25°C) 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 Port Penn, Delaware, with an average temperature ranging between max 53.8°F (12.1°C) and min 40.1°F (4.5°C). November's arrival coincides with a drop in the average high-temperature, decreasing from October's refreshing 65.3°F (18.5°C) to a cool 53.8°F (12.1°C). Weather in November »

Weather in December

The first month of the winter, December, is also a frosty month in Port Penn, Delaware, with an average temperature ranging between min 34°F (1.1°C) and max 45°F (7.2°C). With the arrival of December, Port Penn experiences a modest decline in average high-temperatures, transitioning from a fresh 53.8°F (12.1°C) in November to a frosty 45°F (7.2°C). Weather in December »
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Frequently asked questions

What part of the year is the coldest in Port Penn?

In Port Penn, the average lowest temperatures are observed in January, with a high of 38.7°F (3.7°C) and a low of 27°F (-2.8°C).

What is the driest month in Port Penn?

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

How much does it rain in Port Penn?

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

When does it snow in Port Penn?

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

How much does it snow in Port Penn?

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

What is the month with the lowest UV index in Port Penn?

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

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

With an average of 4.9h of sunshine, February has the least sunshine of the year in Port Penn.

What is the snowiest month in Port Penn?

The month with the most snowfall in Port Penn is March, when snow falls for 2.6 days and typically aggregates up to 2.32" (59mm) of snow.

When is Daylight Saving Time (DST) in Port Penn?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.

What is the least humid month in Port Penn?

April is the least humid month, 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?

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

When it does not snow in Port Penn?

In Port Penn, Delaware, snow does not fall in June through October.

When are the longest days in Port Penn?

The month with the longest days in Port Penn, Delaware, is June, with an average of 14h and 54min of daylight.

What time of the year is the hottest in Port Penn?

July registers as the month with the average highest temperatures in Port Penn, reaching 85.1°F (29.5°C) at its peak and 68.5°F (20.3°C) at the lowest.

What month has the most sunshine in Port Penn?

July has the most sunshine of the year in Port Penn, with an average of 10.7h of sunshine.

What is the wettest month in Port Penn?

The month with the most rainfall is August, when the rain falls for 15 days and typically aggregates up to 3.23" (82mm) of precipitation.

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

With an average of 9h and 24min of daylight, December has the shortest days of the year in Port Penn, Delaware.

Average pressure
Port Penn, DE

Average pressure - Port Penn, 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
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

The 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").
The 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).
The 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: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

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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).
The 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

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
Port Penn, DE

Average visibility - Port Penn, 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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Port Penn, Delaware, USA

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