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, like December, is a freezing cold winter month in Madison, Wisconsin, with average temperature fluctuating between 26.4°F (-3.1°C) and 11.1°F (-11.6°C).

Temperature

The coldest month is January, with an average high-temperature of 26.4°F (-3.1°C) and an average low-temperature of 11.1°F (-11.6°C).

Humidity

The average relative humidity in Madison is 74.5%.

Rainfall

The month with the least rainfall in Madison is January when the rain falls for 10.2 days and typically collects 1.2" (31.2mm) of precipitation.

Snowfall

Months with snowfall in Madison are January through May, October through December.

Daylight

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

Sunshine

In January, the average sunshine is 4.6h.

UV index

Months with the lowest UV index in Madison, Wisconsin, are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the coldest month in Madison?

The coldest month in Madison is January, with an average high-temperature of 26.4°F (-3.1°C) and an average low-temperature of 11.1°F (-11.6°C).

What is the temperature in January in Madison?

In January, the average high-temperature is 26.4°F (-3.1°C), and the average low-temperature is 11.1°F (-11.6°C).

What is the average humidity in January in Madison?

In Madison, Wisconsin, the average relative humidity in January is 74.5%.

How much does it rain in Madison in January?

In Madison, Wisconsin, during January, the rain falls for 10.2 days and regularly aggregates up to 1.2" (31.2mm) of precipitation.

What is the driest month in Madison?

January is the month with the least rainfall in Madison, Wisconsin. Rain falls for 10.2 days and accumulates 1.2" (31.2mm) of precipitation.

How many days does it snow in January in Madison?

In January, in Madison, it is snowing for 9.8 days. Throughout January, 12.9" (327.7mm) of snow is accumulated.

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

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

How many hours of sunshine does Madison have in January?

In January, the average sunshine in Madison is 4.6h.

When is the lowest UV index in Madison?

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

How high is the UV index in January in Madison?

In January, the average daily maximum UV index in Madison, Wisconsin, is 1. A UV Index value of 2, and less, symbolizes a low health threat from unsafe exposure to the Sun's UV rays.
Average temperature in January - Madison, WI
  • Average high temperature in January: 26.4°F

The warmest month (with the highest average high temperature) is July (81.6°F).
The month with the lowest average high temperature is January (26.4°F).

  • Average low temperature in January: 11.1°F

The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (11.1°F).

Average humidity in January - Madison, WI
  • Average humidity in January: 74.5%

The month with the highest relative humidity is December (78.5%).
The month with the lowest relative humidity is May (65.8%).

Average rainfall in January - Madison, WI
  • Average rainfall in January: 1.2"

The wettest month (with the highest rainfall) is June (4.5").
The driest month (with the lowest rainfall) is January (1.2").

Average rainfall days in January - Madison, WI
  • Average rainfall days in January: 10.2 days

The month with the highest number of rainy days is April (12.1 days).
The month with the lowest number of rainy days is February (9.2 days).

Average snowfall in January - Madison, WI
  • Average snowfall in January: 12.9"

The month with the highest snowfall is December (13.5").
Months with the lowest snowfall are June, July, August and September (0").

Average snowfall days in January - Madison, WI
  • Average snowfall days in January: 9.8 days

The month with the highest number of snowfall days is January (9.8 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: 4.6h

Months with most sunshine are June and July (Average sunshine: 9.8h).
The month with least sunshine is December (Average sunshine: 3.5h).

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

The month with the highest UV index is July (UV index 9).
Months with the lowest UV index are January and December (UV index 1).