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

December 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
December, the first month of the winter, in Madison, is still a freezing cold month, with average temperature varying between 20.3°F (-6.5°C) and 30.4°F (-0.9°C).

Temperature

In Madison, Wisconsin, the average high-temperature decreases, from a wintry 42.4°F (5.8°C) in November, to a subzero cold 30.4°F (-0.9°C). In Madison, the average low-temperature is 20.3°F (-6.5°C).

Humidity

In December, the average relative humidity is 84%.

Rainfall

January, March, November and December are months with the least rain when the rain falls for 2 days and typically aggregates up to 0.24" (6mm) of rain.

Snowfall

Months with snowfall in Madison, Wisconsin, are January through April, October through December. In Madison, snow falls for 4.9 days, with typically accumulated 0.16" (4mm) of snow. Throughout the year, in Madison, Wisconsin, there are 22.6 snowfall days, and 2.83" (72mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9.1h of daylight.

Sunshine

In December, the average sunshine is 3.9h.

UV index

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Madison. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to the UV radiation for ordinary individuals.
Note: The daily maximum UV index of 1 in December interpret into the following advice:
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. 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 temperature in December in Madison?

In Madison, in December, the average high-temperature is 30.4°F (-0.9°C), and the average low-temperature is 20.3°F (-6.5°C).

What is the average humidity in December in Madison?

The average relative humidity in December in Madison, Wisconsin, is 84%.

How much does it rain in Madison in December?

In Madison, Wisconsin, in December, it is raining for 2 days, with typically 0.24" (6mm) of accumulated precipitation.

What is the driest month in Madison?

January, March, November and December are months with the least rain when the rain falls for 2 days and typically aggregates up to 0.24" (6mm) of rain.

How much does it snow in Madison in December?

In Madison, Wisconsin, in December, during 4.9 snowfall days, 0.16" (4mm) of snow is typically accumulated.

What is the month with the shortest days in Madison?

The month with the shortest days in Madison, Wisconsin, is December, with an average of 9.1h of daylight.

How many hours of daylight does Madison have in December?

In December, the average length of the day in Madison, Wisconsin, is 9.1h.

How many hours of sunshine does Madison have in December?

In Madison, Wisconsin, the average sunshine in December is 3.9h.

When is the lowest UV index in Madison?

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

What is the UV index intensity in December in Madison?

The average daily maximum UV index in December in Madison, Wisconsin, is 1. A UV Index of 2, and less, symbolizes a minimal hazard to health from unsafe exposure to the Sun's UV rays.
Average temperature in December - Madison, WI
  • Average high temperature in December: -0.9°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 December: -6.5°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 December - Madison, WI
  • Average humidity in December: 84%

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 December - Madison, WI
  • Average rainfall in December: 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 December - Madison, WI
  • Average rainfall days in December: 2 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 December - Madison, WI
  • Average snowfall in December: 4mm

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 December - Madison, WI
  • Average snowfall days in December: 4.9 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 December / Average sunshine in December - Madison, WI
  • Average daylight in December: 9.1h

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 December: 3.9h

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 December - Madison, WI
  • Average UV index in December: 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).