January Weather in Madison, United States

Last updated: June 24, 2025

In January, the average temperature in Madison, United States hovers around -8°C (18°F), with extremes ranging from a chilling -37°C (-35°F) to a surprisingly warm 9°C (49°F). Expect 20 mm (0.8 in) of precipitation over 4 days, accompanied by an average humidity of 80%, creating a crisp and brisk atmosphere in this winter wonderland.

January Temperature in Madison

In January in Madison, the average temperature is -8°C (18°F). The maximum can reach 9°C (49°F), while the minimum can plunge to as low as -37°C (-35°F). Travelers should be prepared for extreme cold and pack appropriate winter gear when visiting during this time.

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

The chart illustrates January 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, January typically has an average temperature of -8°C (18°F), with highs reaching up to 9°C (49°F) and lows dropping to around -37°C (-35°F).

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

January Precipitation in Madison

In Madison in January, the total precipitation amount is 20 mm (0.8 in) spread over a period of 4 days.

January Precipitation Trends in Madison

The chart displays monthly precipitation patterns in Madison, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Madison, January typically receives around 20 mm (0.8 inches) of precipitation spread over approximately 4 days.

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

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Millimeters (mm) Inches (in)

January Humidity in Madison

In Madison in January, humidity is 80%. With an average temperature of -8°C (18°F), this humidity feels like walking through a thick fog, where the cold air clings to your skin and every breath seems to crystallize, making traveling a challenge as you navigate the slippery streets while bundled up against the biting chill.

January Average Humidity in Madison

This chart illustrates the average monthly humidity levels in Madison, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Madison is approximately 80%, offering insight into how humid the weather typically is during this month.

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

January UV Index in Madison

In Madison in January, 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 January

The chart shows the monthly maximum UV Index (UVI) for Madison in January, 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 January, the maximum UV index in Madison typically reaches 2, which falls under the low exposure category.

Data source: Madison January 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 January 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 January’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 January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-8°C (18°F)	20 mm (0.8 inches)	80%	low
February Weather	-8°C (18°F)	22 mm (0.9 inches)	84%	moderate
March Weather	1°C (33°F)	60 mm (2.4 inches)	75%	moderate
April Weather	6°C (43°F)	74 mm (2.9 inches)	79%	very high
May Weather	14°C (58°F)	108 mm (4.3 inches)	74%	very high
June Weather	22°C (72°F)	81 mm (3.2 inches)	81%	extreme
July Weather	23°C (74°F)	98 mm (3.9 inches)	82%	very high
August Weather	21°C (70°F)	116 mm (4.6 inches)	80%	very high
September Weather	18°C (64°F)	108 mm (4.3 inches)	75%	very high
October Weather	8°C (47°F)	78 mm (3.1 inches)	77%	moderate
November Weather	1°C (34°F)	27 mm (1.1 inches)	85%	moderate
December Weather	-4°C (25°F)	35 mm (1.4 inches)	83%	low