January 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).

Temperature

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).

Humidity

January and February, with an average relative humidity of 92%, are the most humid months in Port Arthur.

Rainfall

The month with the least rainfall in Port Arthur is January, when the rain falls for 3.3 days and typically collects 0.98" (25mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In January, in Port Arthur, it is snowing for 19.4 days. Throughout January, 5.91" (150mm) of snow is accumulated. Throughout the year, in Port Arthur, Wisconsin, there are 88.7 snowfall days, and 35.87" (911mm) of snow is accumulated.

Daylight

In Port Arthur, the average length of the day in January is 9h and 12min.
On the first day of the month, sunrise is at 7:44 am and sunset at 4:32 pm. On the last day of January, in Port Arthur, sunrise is at 7:26 am and sunset at 5:10 pm CST.

Sunshine

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

UV index

January, February and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In January, the average maximum UV index of 1 translate into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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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 temperature in January in Port Arthur?

In Port Arthur, in January, the average high-temperature is 18.1°F (-7.7°C), and the average low-temperature is 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 average humidity in January in Port Arthur?

The average relative humidity in January in Port Arthur is 92%.

What is the driest month in Port Arthur?

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

How much does it rain in Port Arthur in January?

In January, in Port Arthur, Wisconsin, the rain falls for 3.3 days. Throughout January, 0.98" (25mm) of precipitation is accumulated.

How much does it snow in Port Arthur in January?

In Port Arthur, in January, snow falls for 19.4 days, with typically accumulated 5.91" (150mm) of snow.

How many hours of daylight does Port Arthur have in January?

The average day length in January in Port Arthur is 9h and 12min.

What time are sunrise and sunset in January in Port Arthur?

In January, on the first day of the month, sunrise is at 7:44 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 5:10 pm CST.

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.

How many hours of sunshine does Port Arthur have in January?

In Port Arthur, the average sunshine duration in January is 2.6h.

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.

What is the UV index reading in January in Port Arthur?

The average daily maximum UV index in January in Port Arthur is 1. A UV Index estimate of 2, and below, represents a low health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Port Arthur, WI

Average temperature in January - Port Arthur, WI
  • Average high temperature in January: 18.1°F

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).

  • Average low temperature in January: 5.4°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 in January
Port Arthur, WI

Average pressure in January - Port Arthur, WI
  • Average pressure in January: 30.11"Hg

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 in January
Port Arthur, WI

Average wind speed in January - Port Arthur, WI
  • Average wind speed in January: 8.6mph

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 in January
Port Arthur, WI

Average humidity in January - Port Arthur, WI
  • Average humidity in January: 92%

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 in January
Port Arthur, WI

Average rainfall in January - Port Arthur, WI
  • Average rainfall in January: 0.98"

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 in January
Port Arthur, WI

Average rainfall days in January - Port Arthur, WI
  • Average rainfall days in January: 3.3 days

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 in January
Port Arthur, WI

Average snowfall in January - Port Arthur, WI
  • Average snowfall in January: 5.91"

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 in January
Port Arthur, WI

Average snowfall days in January - Port Arthur, WI
  • Average snowfall days in January: 19.4 days

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 in January /
Average sunshine in January
Port Arthur, WI

Average daylight in January / Average sunshine in January - Port Arthur, WI
  • Average daylight in January: 9h and 12min

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).

  • Average sunshine in January: 2h and 36min

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 in January
Port Arthur, WI

Average sunshine days in January - Port Arthur, WI
  • Average sunshine days in January: 12.2 days

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 in January
Port Arthur, WI

Average UV index in January - Port Arthur, WI
  • Average UV index in January: 1

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 cloud cover in January
Port Arthur, WI

Average cloud cover in January - Port Arthur, WI
  • Average cloud cover in January: 75

The months with the most cloud cover are January and February (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 38).

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Average visibility in January
Port Arthur, WI

Average visibility in January - Port Arthur, WI
  • Average visibility in January: 4mi

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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