January weather forecast
Caledonia, WI

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Weather in January

January, like December, is a freezing cold winter month in Caledonia, Wisconsin, with an average temperature fluctuating between 18.5°F (-7.5°C) and 27.7°F (-2.4°C).

Temperature

January is the month that records the lowest temperatures, with averages ranging from a high of 27.7°F (-2.4°C) to a low of 18.5°F (-7.5°C).

Humidity

January is the most humid month, with an average relative humidity of 84%.

Rainfall

In January, the rain falls for 5.8 days. Throughout January, 0.51" (13mm) of precipitation is accumulated. In Caledonia, during the entire year, the rain falls for 119.1 days and collects up to 10.39" (264mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. The month with the most snowfall in Caledonia is January, when snow falls for 11.8 days and typically aggregates up to 1.02" (26mm) of snow.

Daylight

In Caledonia, the average length of the day in January is 9h and 28min.
On the first day of January, sunrise is at 7:22 am and sunset at 4:28 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 5:02 pm CST.

Sunshine

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

UV index

In January, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index of 2 in January interprets into the following recommendations:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Stay sun-safe with clothing that is both closely woven and worn loosely. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Updated: Jul 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year?

January is the month when Caledonia sees the average lowest temperatures, with a high of 27.7°F (-2.4°C) and a low of 18.5°F (-7.5°C).

How cold is January?

In January, the average high-temperature and low-temperature are 27.7°F (-2.4°C) and 18.5°F (-7.5°C) respectively.

What is the most humid month in Caledonia?

With an average relative humidity of 84%, January is the most humid month.

What is the average humidity in January?

In Caledonia, the average relative humidity in January is 84%.

How much does it rain in January?

In Caledonia, in January, during 5.8 rainfall days, 0.51" (13mm) of precipitation is typically accumulated.

When does it snow the most?

January is the month with the most snowfall. Snow falls for 11.8 days and accumulates 1.02" (26mm) of snow.

How much does it snow in January?

In Caledonia, in January, during 11.8 snowfall days, 1.02" (26mm) of snow is typically accumulated.

How many hours of daylight does Caledonia have in January?

In Caledonia, the average day length in January is 9h and 28min.

When is the sunrise / sunset in January?

On the first day of January, sunrise is at 7:22 am and sunset at 4:28 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 5:02 pm CST.

What is the month with the least sunshine?

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

How many hours of sunshine does Caledonia have in January?

In Caledonia, the average sunshine duration in January is 3.6h.

How high is the UV index in January?

In January, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low health threat from 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
Caledonia, WI

Average temperature in January - Caledonia, WI
  • Average high temperature in January: 27.7°F

The warmest month (with the highest average high temperature) is July (75.4°F).
The month with the lowest average high temperature is January (27.7°F).

  • Average low temperature in January: 18.5°F

The month with the highest average low temperature is August (66°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).

Average pressure in January
Caledonia, WI

Average pressure in January - Caledonia, 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
Caledonia, WI

Average wind speed in January - Caledonia, WI
  • Average wind speed in January: 13mph

The windiest month (with the highest average wind speed) is January (13mph).
The calmest month (with the lowest average wind speed) is July (8mph).

Average humidity in January
Caledonia, WI

Average humidity in January - Caledonia, WI
  • Average humidity in January: 84%

The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are October and November (75%).

Average rainfall in January
Caledonia, WI

Average rainfall in January - Caledonia, WI
  • Average rainfall in January: 0.51"

The wettest month (with the highest rainfall) is May (1.34").
The driest month (with the least rainfall) is December (0.43").

Average rainfall days in January
Caledonia, WI

Average rainfall days in January - Caledonia, WI
  • Average rainfall days in January: 5.8 days

The month with the highest number of rainy days is May (13.7 days).
The month with the least rainy days is February (4.3 days).

Average snowfall in January
Caledonia, WI

Average snowfall in January - Caledonia, WI
  • Average snowfall in January: 1.02"

The month with the highest snowfall is January (1.02").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Caledonia, WI

Average snowfall days in January - Caledonia, WI
  • Average snowfall days in January: 11.8 days

The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Caledonia, WI

Average daylight in January / Average sunshine in January - Caledonia, WI
  • Average daylight in January: 9h and 3min

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 month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days in January
Caledonia, WI

Average sunshine days in January - Caledonia, WI
  • Average sunshine days in January: 14.3 days

The month with the most sunshine days is December (18.7 days).
The month with the least sunshine days is July (13.5 days).

Average UV index in January
Caledonia, WI

Average UV index in January - Caledonia, WI
  • Average UV index in January: 2

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

Average cloud cover in January
Caledonia, WI

Average cloud cover in January - Caledonia, 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 25).

Average visibility in January
Caledonia, WI

Average visibility in January - Caledonia, 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).

Caledonia, Wisconsin, USA

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