Climate and monthly weather forecast
Port Arthur, WI

Weather in January

January, the same as December, in Port Arthur, Wisconsin, is a freezing cold winter month, with an average temperature ranging between min 5.4°F (-14.8°C) and max 18.1°F (-7.7°C). The coldest month is January, with an average high-temperature of 18.1°F (-7.7°C) and an average low-temperature of 5.4°F (-14.8°C). Weather in January »

Weather in February

February, the last month of the winter in Port Arthur, is also a subzero cold month, with temperature in the range of an average low of 8.4°F (-13.1°C) and an average high of 22.5°F (-5.3°C). In Port Arthur, the average high-temperature in February is essentially the same as in January - a still freezing cold 22.5°F (-5.3°C). Weather in February »

Weather in March

The first month of the spring, March, is a wintry month in Port Arthur, Wisconsin, with an average temperature ranging between max 36.9°F (2.7°C) and min 21.7°F (-5.7°C). In Port Arthur, the average high-temperature in March significantly increases from a subzero cold 22.5°F (-5.3°C) in February to a cold 36.9°F (2.7°C). Weather in March »

Weather in April

April in Port Arthur, Wisconsin, is a chilly spring month, with an average temperature ranging between max 49.6°F (9.8°C) and min 32.5°F (0.3°C). In April, the average high-temperature rises from a cold 36.9°F (2.7°C) in March to a frosty 49.6°F (9.8°C). Weather in April »

Weather in May

The last month of the spring, May, is an enjoyable month in Port Arthur, Wisconsin, with an average temperature ranging between max 64.4°F (18°C) and min 44.2°F (6.8°C). In May, the average high-temperature increases considerably from a chilly 49.6°F (9.8°C) in April to an enjoyable 64.4°F (18°C). Weather in May »

Weather in June

June, the first month of the summer in Port Arthur, is a warm month, with an average temperature fluctuating between 53.4°F (11.9°C) and 74.3°F (23.5°C). In Port Arthur, the average high-temperature in June rises from an enjoyable 64.4°F (18°C) in May to a moderately hot 74.3°F (23.5°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Port Arthur, Wisconsin, with an average temperature fluctuating between 58.5°F (14.7°C) and 78.8°F (26°C). With an average high-temperature of 78.8°F (26°C) and an average low-temperature of 58.5°F (14.7°C), July is the warmest month. Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Port Arthur, Wisconsin, with an average temperature fluctuating between 76.8°F (24.9°C) and 56.3°F (13.5°C). In Port Arthur, the average high-temperature in August is practically the same as in July - a still warm 76.8°F (24.9°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a pleasant month in Port Arthur, Wisconsin, with an average temperature varying between 68.9°F (20.5°C) and 49.1°F (9.5°C). In September, the average high-temperature marginally drops from a warm 76.8°F (24.9°C) in August to a pleasant 68.9°F (20.5°C). Weather in September »

Weather in October

October, like September, in Port Arthur, Wisconsin, is a cool autumn month, with an average temperature fluctuating between 38.3°F (3.5°C) and 52.7°F (11.5°C). In Port Arthur, the average high-temperature in October plummets from a pleasant 68.9°F (20.5°C) in September to a cool 52.7°F (11.5°C). Weather in October »

Weather in November

The last month of the autumn, November, is another cold month in Port Arthur, Wisconsin, with an average temperature fluctuating between 25.9°F (-3.4°C) and 37.6°F (3.1°C). In November, the average high-temperature declines considerably from a cool 52.7°F (11.5°C) in October to a cold 37.6°F (3.1°C). Weather in November »

Weather in December

The first month of the winter, December, is also a subzero cold month in Port Arthur, Wisconsin, with an average temperature fluctuating between 13.1°F (-10.5°C) and 23.9°F (-4.5°C). In Port Arthur, the average high-temperature in December decreases from a cold 37.6°F (3.1°C) in November to a freezing cold 23.9°F (-4.5°C). Weather in December »
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FAQ

What is the coldest month in Port Arthur?

The coldest month in Port Arthur, Wisconsin, is January, with an average high-temperature of 18.1°F (-7.7°C) and an average low-temperature of 5.4°F (-14.8°C).

What is the most humid month in Port Arthur?

The months with the highest humidity in Port Arthur, Wisconsin, are January and February, with an average relative humidity of 92%.

What is the driest month in Port Arthur?

January is the month with the least rainfall. Rain falls for 3.3 days and accumulates 0.98" (25mm) of precipitation.

How many days does it rain in Port Arthur?

In Port Arthur, during the entire year, the rain falls for 128.5 days and collects up to 23.94" (608mm) of precipitation.

When does it snow in Port Arthur?

January through May, October through December are months with snowfall in Port Arthur, Wisconsin.

How many days does it snow in Port Arthur?

Throughout the year, there are 88.7 snowfall days, and 35.87" (911mm) of snow is accumulated.

What are the months with the least sunshine in Port Arthur?

The months with the least sunshine in Port Arthur, Wisconsin, are January and February, with an average of 2.6h of sunshine.

When is the lowest UV index in Port Arthur?

January, February and December, with an average maximum UV index of 1, are months with the lowest UV index in Port Arthur, Wisconsin.

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

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 6. 2022, at 2:00 am, and the time zone reverts from CDT to CST.

What is the least humid month in Port Arthur?

May is the least humid month in Port Arthur, Wisconsin, with an average relative humidity of 75%.

When is the highest UV index in Port Arthur?

May through August, with an average maximum UV index of 5, are months with the highest UV index in Port Arthur.

What is the rainiest month in Port Arthur?

The month with the most rainfall is June, when the rain falls for 16.5 days and typically aggregates up to 3.43" (87mm) of precipitation.

When it does not snow in Port Arthur?

In Port Arthur, Wisconsin, snow does not fall in June through September.

When are the longest days in Port Arthur?

June has the longest days of the year in Port Arthur, with an average of 15h and 37min of daylight.

What is the warmest month in Port Arthur?

With an average high-temperature of 78.8°F (26°C) and an average low-temperature of 58.5°F (14.7°C), July is the warmest month in Port Arthur, Wisconsin.

What month has the most sunshine in Port Arthur?

July has the most sunshine of the year in Port Arthur, with an average of 9.6h of sunshine.

When does it snow the most in Port Arthur?

December is the month with the most snowfall. Snow falls for 16.8 days and accumulates 7.28" (185mm) of snow.

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

The month with the shortest days is December, with an average of 8h and 47min of daylight.

Average temperature
Port Arthur, WI

Average temperature - Port Arthur, WI

The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is January (18.1°F).

The month with the highest average low temperature is July (58.5°F).
The coldest month (with the lowest average low temperature) is January (5.4°F).

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Average pressure
Port Arthur, WI

Average pressure - Port Arthur, WI

The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

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Average wind speed
Port Arthur, WI

Average wind speed - Port Arthur, WI

The windiest month (with the highest average wind speed) is April (8.8mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

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Average humidity
Port Arthur, WI

Average humidity - Port Arthur, WI

The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is May (75%).

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Average rainfall
Port Arthur, WI

Average rainfall - Port Arthur, WI

The wettest month (with the highest rainfall) is June (3.43").
The driest month (with the least rainfall) is January (0.98").

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Average rainfall days
Port Arthur, WI

Average rainfall days - Port Arthur, WI

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (2.9 days).

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Average snowfall
Port Arthur, WI

Average snowfall - Port Arthur, WI

The month with the highest snowfall is December (7.28").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Port Arthur, WI

Average snowfall days - Port Arthur, WI

The month with the highest number of snowfall days is January (19.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Port Arthur, WI

Average daylight / Average sunshine - Port Arthur, WI

The month with the longest days is June (Average daylight: 15h and 37min).
The month with the shortest days is December (Average daylight: 8h and 47min).

The month with the most sunshine is July (Average sunshine: 9h and 36min).
The months with the least sunshine are January and February (Average sunshine: 2h and 36min).

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Average sunshine days
Port Arthur, WI

Average sunshine days - Port Arthur, WI

The month with the most sunshine days is October (16 days).
The months with the least sunshine days are February and April (10 days).

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Average UV index
Port Arthur, WI

Average UV index - Port Arthur, WI

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).

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Average visibility
Port Arthur, WI

Average visibility - Port Arthur, WI

The months with the highest visibility are May and June (6mi).
The months with the lowest visibility are January, February and December (4mi).

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