January weather forecast
Whitefish Bay, WI

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Weather in January

January, like December, is a freezing cold winter month in Whitefish Bay, Wisconsin, with temperature in the range of an average low of 17.1°F (-8.3°C) and an average high of 26.8°F (-2.9°C).

Temperature

In Whitefish Bay, January is the month with the lowest recorded average temperatures, measuring a high of 26.8°F (-2.9°C) and a low of 17.1°F (-8.3°C).

Humidity

January is the most humid month, with an average relative humidity of 85%.

Rainfall

In Whitefish Bay, in January, during 5.5 rainfall days, 0.75" (19mm) of precipitation is typically accumulated. Throughout the year, there are 129.5 rainfall days, and 18.62" (473mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, October through December. The month with the most snowfall is January, when snow falls for 12.8 days and typically aggregates up to 2.17" (55mm) of snow.

Ocean temperature

In Whitefish Bay, the average seawater temperature in January is 37.4°F (3°C).
Note: While swimming, this scenario is perilously cold, dangerous, and potentially fatal. Hypothermia is almost imminent without proper insulated waterproof attire.

Daylight

In January, the average length of the day is 9h and 26min.
On the first day of January, sunrise is at 7:23 am and sunset at 4:26 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 5:01 pm CST.

Sunshine

With an average of 3.6h of sunshine, January has the least sunshine of the year.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 1 during January translates into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always 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. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest?

January, recording an average high temperature of 26.8°F (-2.9°C) and a low temperature of 17.1°F (-8.3°C), is Whitefish Bay's coldest month.

How cold is January?

January temperatures vary between a high-temperature of 26.8°F (-2.9°C) and a low-temperature of 17.1°F (-8.3°C).

What is the most humid month?

January is the most humid month, with an average relative humidity of 85%.

What is the average humidity in January?

In January, the average relative humidity in Whitefish Bay is 85%.

How many days does it rain in January?

In January, in Whitefish Bay, the rain falls for 5.5 days. Throughout January, 0.75" (19mm) of precipitation is accumulated.

What is the snowiest month?

January is the month with the most snowfall. Snow falls for 12.8 days and accumulates 2.17" (55mm) of snow.

How much does it snow in January?

In Whitefish Bay, during January, snow falls for 12.8 days and regularly aggregates up to 2.17" (55mm) of snow.

What is the water temperature in January?

In Whitefish Bay, Wisconsin, the average seawater temperature in January is 37.4°F (3°C). For swimming, this is considered very dangerous and immediately life-threatening. Total loss of breathing control instantly occurs, and clear thinking becomes almost impossible. A specialized swimsuit is obligatory to minimize thermal loss.

How many hours of daylight does Whitefish Bay have in January?

In January, the average day length in Whitefish Bay is 9h and 26min.

When are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:23 am and sunset at 4:26 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 5:01 pm CST.

What is the month with the least sunshine in Whitefish Bay?

January has the least sunshine of the year, with an average of 3.6h of sunshine.

How long on average sun shines in January?

The average sunshine duration in January is 3.6h.

What is the month with the lowest UV index in Whitefish Bay?

January and December, with an average maximum UV index of 1, are months with the lowest UV index.

What is the UV index reading in January?

The average daily maximum UV index in January is 1. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Whitefish Bay, WI

Average temperature in January - Whitefish Bay, WI
  • Average high temperature in January: 26.8°F

The warmest month (with the highest average high temperature) is July (75.7°F).
The month with the lowest average high temperature is January (26.8°F).

  • Average low temperature in January: 17.1°F

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).

Average pressure in January
Whitefish Bay, WI

Average pressure in January - Whitefish Bay, WI
  • Average pressure in January: 30.09"Hg

The months with the highest atmospheric pressure are January, February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in January
Whitefish Bay, WI

Average wind speed in January - Whitefish Bay, WI
  • Average wind speed in January: 12.6mph

The windiest month (with the highest average wind speed) is January (12.6mph).
The calmest month (with the lowest average wind speed) is July (7.7mph).

Average humidity in January
Whitefish Bay, WI

Average humidity in January - Whitefish Bay, WI
  • Average humidity in January: 85%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (75%).

Average rainfall in January
Whitefish Bay, WI

Average rainfall in January - Whitefish Bay, WI
  • Average rainfall in January: 0.75"

The wettest month (with the highest rainfall) is July (2.56").
The driest month (with the least rainfall) is December (0.71").

Average rainfall days in January
Whitefish Bay, WI

Average rainfall days in January - Whitefish Bay, WI
  • Average rainfall days in January: 5.5 days

The months with the highest number of rainy days are May, June and July (15.2 days).
The month with the least rainy days is February (4.5 days).

Average snowfall in January
Whitefish Bay, WI

Average snowfall in January - Whitefish Bay, WI
  • Average snowfall in January: 2.17"

The month with the highest snowfall is January (2.17").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
Whitefish Bay, WI

Average snowfall days in January - Whitefish Bay, WI
  • Average snowfall days in January: 12.8 days

The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average sea temperature in January
Whitefish Bay, WI

Average sea temperature in January - Whitefish Bay, WI
  • Average sea temperature in January: 37.5°F

The best month for swimming (with the highest average sea temperature) is August (71.9°F).
The coldest month (with the lowest average sea temperature) is February (36°F).

Average daylight in January /
Average sunshine in January
Whitefish Bay, WI

Average daylight in January / Average sunshine in January - Whitefish Bay, WI
  • Average daylight in January: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in January: 3h and 4min

The months with the most sunshine are July and August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days in January
Whitefish Bay, WI

Average sunshine days in January - Whitefish Bay, WI
  • Average sunshine days in January: 16.3 days

The month with the most sunshine days is December (18.2 days).
The month with the least sunshine days is June (12.3 days).

Average UV index in January
Whitefish Bay, WI

Average UV index in January - Whitefish Bay, WI
  • Average UV index in January: 1

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in January
Whitefish Bay, WI

Average cloud cover in January - Whitefish Bay, WI
  • Average cloud cover in January: 62

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is July (Cloud cover 26).

Average visibility in January
Whitefish Bay, WI

Average visibility in January - Whitefish Bay, WI
  • Average visibility in January: 6mi

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).

Whitefish Bay, Wisconsin, USA

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