Madison
Wisconsin, USA
Long-term weather forecast
Long-term weather forecast

January weather forecast and climate
Madison, WI

A view of the State Capitol building in Madison, Wisconsin, on a beautiful spring evening
A view of the State Capitol building in Madison, Wisconsin, on a beautiful spring evening
January, the same as December, in Madison, Wisconsin, is a freezing cold winter month, with average temperature ranging between min 10.8°F (-11.8°C) and max 23.9°F (-4.5°C).

Temperature

With an average high-temperature of 23.9°F (-4.5°C) and an average low-temperature of 10.8°F (-11.8°C), January is the coldest month.

Humidity

January and February, with an average relative humidity of 88%, are most humid months in Madison.

Rainfall

Months with the least rainfall in Madison are January, March, November and December Rain falls for 1.1 days and accumulates 0.24" (6mm) of rain.

Snowfall

Months with snowfall are January through April, October through December. In Madison, in January, snow falls for 5.6 days, with typically accumulated 0.87" (22mm) of snow. Throughout the year, there are 22.6 snowfall days, and 2.83" (72mm) of snow is accumulated.

Daylight

In Madison, Wisconsin, the average length of the day is 9.4h.

Sunshine

The month with the least sunshine is January, with an average of 3.3h of sunshine.

UV index

Months with the lowest UV index are January, November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from the exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 1 interpret into the following advice:
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 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.

What is the coldest month in Madison?

The coldest month in Madison is January, with an average high-temperature of 23.9°F (-4.5°C) and an average low-temperature of 10.8°F (-11.8°C).

What is the temperature in January in Madison?

The average high-temperature, in January, in Madison, is 23.9°F (-4.5°C), while the average low-temperature is 10.8°F (-11.8°C).

What is the most humid month in Madison?

Months with the highest humidity in Madison, Wisconsin, are January and February, with an average relative humidity of 88%.

What is the average humidity in January in Madison?

In Madison, Wisconsin, the average relative humidity in January is 88%.

How many days does it rain in January in Madison?

In Madison, during January, the rain falls for 1.1 days and regularly aggregates up to 0.24" (6mm) of precipitation.

What is the driest month in Madison?

Months with the least rainfall in Madison, Wisconsin, are January, March, November and December Rain falls for 1.1 days and accumulates 0.24" (6mm) of rain.

How many days does it snow in January in Madison?

In January, in Madison, Wisconsin, it is snowing for 5.6 days. Throughout January, 0.87" (22mm) of snow is accumulated.

What is the average length of the day in January in Madison?

In January, the average length of the day in Madison is 9.4h.

What is the month with the least sunshine in Madison?

January has the least sunshine of the year in Madison, Wisconsin, with an average of 3.3h of sunshine.

How long on average sun shines in January in Madison?

In Madison, the average sunshine in January is 3.3h.

What is the month with the lowest UV index in Madison?

Months with the lowest UV index in Madison, Wisconsin, are January, November and December, with an average maximum UV index of 1.

What is the UV index intensity in January in Madison?

The average daily maximum UV index in January is 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from the exposure to the Sun's UV radiation.
Average temperature in January - Madison, WI
  • Average high temperature in January: -4.5°C

The warmest month (with the highest average high temperature) is July (25.9°C).
The month with the lowest average high temperature is January (-4.5°C).

  • Average low temperature in January: -11.8°C

The month with the highest average low temperature is July (16.3°C).
The coldest month (with the lowest average low temperature) is January (-11.8°C).

Average humidity in January - Madison, WI
  • Average humidity in January: 88%

Months with the highest relative humidity are January and February (88%).
Months with the lowest relative humidity are April and October (77%).

Average rainfall in January - Madison, WI
  • Average rainfall in January: 6mm

The wettest month (with the highest rainfall) is July (16mm).
Driest months (with the lowest rainfall) are January, March, November and December (6mm).

Average rainfall days in January - Madison, WI
  • Average rainfall days in January: 1.1 days

The month with the highest number of rainy days is June (6.7 days).
The month with the lowest number of rainy days is January (1.1 days).

Average snowfall in January - Madison, WI
  • Average snowfall in January: 22mm

The month with the highest snowfall is February (24mm).
Months with the lowest snowfall are May, June, July, August and September (0mm).

Average snowfall days in January - Madison, WI
  • Average snowfall days in January: 5.6 days

The month with the highest number of snowfall days is January (5.6 days).
Months with the lowest number of snowfall days are June, July, August and September (0 days).

Average daylight in January / Average sunshine in January - Madison, WI
  • Average daylight in January: 9.4h

The month with the longest days is June (Average daylight: 15.3h).
The month with shortest days is December (Average daylight: 9.1h).

  • Average sunshine in January: 3.3h

The month with most sunshine is July (Average sunshine: 9.8h).
The month with least sunshine is January (Average sunshine: 3.3h).

Average UV index in January - Madison, WI
  • Average UV index in January: 1

Months with the highest UV index are June and July (UV index 6).
Months with the lowest UV index are January, November and December (UV index 1).