January Weather in Madison, United States

Last updated: June 24, 2025

In Madison, United States, the average temperature in January is 6°C (44°F), with a notable variability where it can dip as low as -14°C (7°F) and soar to a maximum of 25°C (77°F). Expect 111 mm (4.4 in) of precipitation spread over 9 days, making it a relatively wet month. Additionally, the air tends to be quite moist, with an average humidity of 87%, so be prepared for some damp conditions!

January Temperature in Madison

In January in Madison, the average temperature is 6°C (44°F). The maximum can reach 25°C (77°F), and the minimum can be as low as -14°C (7°F). Travelers should be prepared for a wide range of temperatures, from chilly to pleasantly warm, making it essential to pack layers for their visit.

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 (44°F), with highs reaching up to 25°C (77°F) and lows dropping to around -14°C (7°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 111 mm (4.4 in) over the course 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 111 mm (4.4 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 87%. With an average temperature of 6°C (44°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration uncomfortable without proper layers and preparation.

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 87%, 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 reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Madison for better planning.

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 4, 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 (44°F)	111 mm (4.4 inches)	87%	moderate
February Weather	9°C (49°F)	178 mm (7.0 inches)	87%	high
March Weather	13°C (56°F)	196 mm (7.7 inches)	85%	very high
April Weather	16°C (61°F)	145 mm (5.7 inches)	82%	very high
May Weather	22°C (71°F)	99 mm (3.9 inches)	83%	very high
June Weather	25°C (77°F)	138 mm (5.4 inches)	82%	extreme
July Weather	27°C (81°F)	124 mm (4.9 inches)	78%	extreme
August Weather	26°C (80°F)	117 mm (4.6 inches)	67%	very high
September Weather	24°C (75°F)	115 mm (4.5 inches)	64%	very high
October Weather	18°C (65°F)	119 mm (4.7 inches)	74%	high
November Weather	10°C (51°F)	78 mm (3.1 inches)	87%	moderate
December Weather	8°C (47°F)	153 mm (6.0 inches)	88%	moderate