January Weather in Madison, United States

Last updated: June 24, 2025

In January, the average temperature in Madison, United States is a cool 9°C (48°F). Expect a range that dips to a chilly -7°C (19°F) at its lowest and can soar to a pleasant 26°C (79°F) at its peak. During this month, precipitation totals 103 mm (4.0 in) over 9 days, with humidity levels averaging a muggy 86%. Prepare accordingly!

January Temperature in Madison

In January in Madison, the average temperature is 9°C (48°F), with maximums reaching up to 26°C (79°F) and minimums dropping as low as -7°C (19°F). Travelers should be prepared for a wide range of temperatures 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 9°C (48°F), with highs reaching up to 26°C (79°F) and lows dropping to around -7°C (19°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 103 mm (4.0 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 103 mm (4.0 inches) of precipitation spread over approximately 9 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Madison

In Madison in January, humidity is 86%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill that wraps around you, making outdoor activities uncomfortable and travel less enjoyable.

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 86%, 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	9°C (48°F)	103 mm (4.0 inches)	86%	moderate
February Weather	12°C (53°F)	125 mm (4.9 inches)	84%	high
March Weather	14°C (58°F)	96 mm (3.8 inches)	83%	very high
April Weather	18°C (64°F)	104 mm (4.1 inches)	81%	very high
May Weather	23°C (73°F)	99 mm (3.9 inches)	81%	extreme
June Weather	25°C (78°F)	109 mm (4.3 inches)	81%	extreme
July Weather	27°C (81°F)	108 mm (4.2 inches)	83%	extreme
August Weather	27°C (80°F)	108 mm (4.3 inches)	81%	very high
September Weather	25°C (77°F)	109 mm (4.3 inches)	82%	very high
October Weather	20°C (68°F)	107 mm (4.2 inches)	78%	very high
November Weather	12°C (54°F)	80 mm (3.2 inches)	86%	high
December Weather	10°C (50°F)	133 mm (5.3 inches)	89%	moderate