December Weather in Madison, United States

Last updated: June 24, 2025

In December, the average temperature in Madison, United States hovers around -5°C (23°F), with a minimum that can drop as low as -26°C (-15°F) and a maximum reaching up to 13°C (57°F). This month typically brings 148 mm (5.8 in) of precipitation over 10 days, creating a backdrop of 81% average humidity.

December Temperature in Madison

In December in Madison, the average temperature is -5°C (23°F), with maximums reaching 13°C (57°F) and minimums dropping as low as -26°C (-15°F). Be prepared for chilly weather and dress in layers to enjoy your travels in Madison.

December Weather in Madison: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Madison, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Madison, December typically has an average temperature of -5°C (23°F), with highs reaching up to 13°C (57°F) and lows dropping to around -26°C (-15°F).

Data source: Temperature data for Madison generated using information from the Copernicus Climate Change Service.

December Precipitation in Madison

In Madison in December, the total precipitation amount is 148 mm (5.8 in) recorded over a span of 10 days.

December Precipitation Trends in Madison

The chart displays monthly precipitation patterns in Madison, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Madison, December typically receives around 148 mm (5.8 inches) of precipitation spread over approximately 10 days.

Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

December Humidity in Madison

In Madison in December, humidity is 81%. With an average temperature of -5°C (23°F), this humidity feels like a biting chill that penetrates deep into your bones, making outdoor activities uncomfortable and travel a challenge.

December Average Humidity in Madison

This chart illustrates the average monthly humidity levels in Madison, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Madison is approximately 81%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Madison

In Madison in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Madison, you can visit Hourly UV Index in Madison.

Maximum UV Index Levels in Madison for December

The chart shows the monthly maximum UV Index (UVI) for Madison in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Madison typically reaches 2, which falls under the low exposure category.

Data source: Madison December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How December Weather in Madison Compares to Other Months

Weather in Madison varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Madison, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Madison, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-8°C (18°F)	93 mm (3.7 inches)	86%	low
February Weather	-6°C (21°F)	97 mm (3.8 inches)	84%	moderate
March Weather	-2°C (28°F)	82 mm (3.2 inches)	82%	high
April Weather	5°C (41°F)	153 mm (6.0 inches)	80%	very high
May Weather	12°C (54°F)	97 mm (3.8 inches)	72%	very high
June Weather	17°C (63°F)	111 mm (4.4 inches)	72%	very high
July Weather	20°C (68°F)	158 mm (6.2 inches)	67%	very high
August Weather	19°C (67°F)	107 mm (4.2 inches)	66%	very high
September Weather	15°C (59°F)	73 mm (2.9 inches)	71%	high
October Weather	9°C (48°F)	155 mm (6.1 inches)	78%	moderate
November Weather	1°C (33°F)	130 mm (5.1 inches)	84%	moderate
December Weather	-5°C (23°F)	148 mm (5.8 inches)	81%	low