January weather forecast and climate
Madison, WI

The State Capitol building in Madison, Wisconsin, on a beautiful spring evening
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 fluctuating between 10.8°F (-11.8°C) and 23.9°F (-4.5°C).

Temperature

The coldest month 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).

Humidity

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

Rainfall

January, March, November and December are months with the least rain when the rain falls for 1.1 days and typically aggregates up to 0.24" (6mm) of rain.

Snowfall

Months with snowfall are January through April, October through December. In Madison, during January, snow falls for 5.6 days and regularly aggregates up to 0.87" (22mm) of snow. In Madison, during the entire year, snow falls for 22.6 days, and aggregates up to 2.83" (72mm) of snow.

Daylight

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

Sunshine

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

UV index

January, November 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 the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 1 in January transform into the following instructions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the coldest month in Madison?

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 in Madison.

What is the temperature in January in Madison?

In January, the average high-temperature is 23.9°F (-4.5°C), and the average low-temperature is 10.8°F (-11.8°C).

What are the most humid months in Madison?

Months with the highest humidity 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, Wisconsin, in January, during 1.1 rainfall days, 0.24" (6mm) of precipitation is typically accumulated.

What is the driest month in Madison?

January, March, November and December are months with the least rain when the rain falls for 1.1 days and typically aggregates up to 0.24" (6mm) of rain.

How much does it snow in Madison in January?

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

How many hours of daylight does Madison have in January?

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

What is the month with the least sunshine in Madison?

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

How long on average sun shines in January in Madison?

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

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

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

How high is the UV index in January in Madison?

In Madison, Wisconsin, the average daily maximum UV index in January is 1. A UV Index value of 2, and less, symbolizes a low health threat from the exposure to the Sun's UV radiation.
Average temperature in January - Madison, WI
  • Average high temperature in January: 23.9°F

The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (23.9°F).

  • Average low temperature in January: 10.8°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).

Average pressure in January - Madison, WI
  • Average pressure in January: 30.11"

Months with the highest atmospheric pressure are January and February (30.11").
The month with the lowest atmospheric pressure is June (29.91").

Average wind speed in January - Madison, WI
  • Average wind speed in January: 9.8mph

The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

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: 0.24"

The wettest month (with the highest rainfall) is July (0.63").
The driest months (with the least rainfall) are January, March, November and December (0.24").

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 least rainy days is January (1.1 days).

Average snowfall in January - Madison, WI
  • Average snowfall in January: 0.87"

The month with the highest snowfall is February (0.94").
Months with the least snowfall are May, June, July, August and September (0").

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 least 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 the shortest days is December (Average daylight: 9.1h).

  • Average sunshine in January: 3.3h

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

Average sunshine days in January - Madison, WI
  • Average sunshine days in January: 26.7 days

The month with the most sunshine days is December (27 days).
The month with the least sunshine days is June (19.8 days).

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).

Average cloud cover in January - Madison, WI
  • Average cloud cover in January: 66

The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in January - Madison, WI
  • Average visibility in January: 5mi

Months with the highest visibility are February, March, April, May, June, October, November and December (6mi).
Months with the lowest visibility are January, July, August and September (5mi).