January Weather in Madison, United States

Last updated: June 24, 2025

In Madison, United States, the average temperature in January hovers around 6°C (43°F). Expect a chill, as temperatures can drop to a brisk -17°C (2°F), while occasionally peaking at a pleasant 23°C (74°F). With 107 mm (4.2 in) of precipitation spread across 9 days, you'll likely encounter some rain, contributing to an average humidity of 84%.

January Temperature in Madison

In January in Madison, the average temperature is 6°C (43°F). The maximum can reach 23°C (74°F), and the minimum can be as low as -17°C (2°F). Be prepared for a wide range of temperatures when traveling during this month, ensuring you have both warm and cool clothing options.

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 6°C (43°F), with highs reaching up to 23°C (74°F) and lows dropping to around -17°C (2°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 precipitation amount is 107 mm (4.2 in), occurring over a span of 9 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 107 mm (4.2 inches) of precipitation spread over approximately 9 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 84%. With an average temperature of 6°C (43°F), this humidity feels like a damp chill that penetrates your clothing, making outdoor excursions uncomfortable and prompting travelers to seek refuge indoors or find warm, sheltered spots to enjoy their surroundings.

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 84%, 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 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Madison, you can check the information here.

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 3, which falls under the moderate 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	6°C (43°F)	107 mm (4.2 inches)	84%	moderate
February Weather	8°C (46°F)	164 mm (6.5 inches)	83%	high
March Weather	13°C (56°F)	164 mm (6.5 inches)	81%	very high
April Weather	16°C (62°F)	140 mm (5.5 inches)	81%	very high
May Weather	22°C (73°F)	153 mm (6.0 inches)	83%	extreme
June Weather	26°C (79°F)	107 mm (4.2 inches)	83%	extreme
July Weather	28°C (82°F)	125 mm (4.9 inches)	81%	extreme
August Weather	27°C (80°F)	121 mm (4.8 inches)	74%	very high
September Weather	25°C (77°F)	84 mm (3.3 inches)	71%	very high
October Weather	18°C (65°F)	125 mm (4.9 inches)	76%	high
November Weather	11°C (51°F)	77 mm (3.0 inches)	84%	moderate
December Weather	9°C (48°F)	155 mm (6.1 inches)	88%	moderate