Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
The coldest period tends to be January, when average temperatures fluctuate between a high of 18.1°F (-7.7°C) and a low of 5.4°F (-14.8°C).Humidity
The months with the highest humidity in Port Arthur are January and February, with an average relative humidity of 92%.Rainfall
January is the month with the least rainfall. Rain falls for 3.3 days and accumulates 0.98" (25mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Port Arthur, during January, snow falls for 19.4 days and regularly aggregates up to 5.91" (150mm) of snow. In Port Arthur, during the entire year, snow falls for 88.7 days and aggregates up to 35.87" (911mm) of snow.Daylight
In Port Arthur, Wisconsin, 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 4:31 pm. On the last day of January, sunrise is at 7:26 am and sunset at 5:09 pm CST.
Sunshine
January and February, with an average of 2.6h of sunshine, are months with the least sunshine.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum UV index of 1 in January translates into the following recommendations:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest?
How cold is it in January?
What are the most humid months?
What is the average humidity in January in Port Arthur?
What is the driest month in Port Arthur?
How much does it rain in January?
How many days does it snow in January?
How many hours of daylight does Port Arthur have in January?
When is the sunrise / sunset in January?
What are the months with the least sunshine?
How many hours of sunshine does Port Arthur have in January?
What are the months with the lowest UV index?
How high is the UV index in January?
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).
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).
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).
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%).
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").
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).
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").
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).
Average daylight in January /
Average sunshine in January
Port Arthur, WI
- Average daylight in January: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in January: 2h and 4min
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).
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).
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).
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).
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).
Port Arthur, Wisconsin, USA
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