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January Weather in Madison, United States

Last updated: June 24, 2025

In January, the average temperature in Madison, United States hovers around -2°C (30°F). Expect a chilly minimum of -20°C (-4°F) and a surprisingly warm maximum of 19°C (66°F). With 88 mm (3.5 in) of precipitation spread over 14 days, you'll experience a damp atmosphere complemented by an average humidity of 88%.

January Temperature in Madison

In January in Madison, the average temperature is -2°C (30°F), with highs reaching up to 19°C (66°F) and lows dipping as low as -20°C (-4°F). It’s advisable to pack layers to accommodate the fluctuating temperatures while exploring this destination.

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 -2°C (30°F), with highs reaching up to 19°C (66°F) and lows dropping to around -20°C (-4°F).
JanFebMarAprMayJunJulAugSepOctNovDec293137475868737267564235
Data source: Temperature data for Madison generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Madison

In Madison in January, the precipitation amount is 88 mm (3.5 in) over the course of 14 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 88 mm (3.5 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec8889901081201081339689127104100
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Madison

In Madison in January humidity is 88%. With an average temperature of -2°C (30°F), this humidity feels like a biting chill that seeps into your bones, making it challenging to fully enjoy outdoor activities without bundling up in layers.

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 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%87%87%81%83%82%76%77%82%89%86%
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.
JanFebMarAprMayJunJulAugSepOctNovDec34689101098642
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.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (30°F)88 mm (3.5 inches)88%moderate
February Weather0°C (31°F)89 mm (3.5 inches)88%moderate
March Weather3°C (38°F)90 mm (3.5 inches)87%high
April Weather8°C (47°F)108 mm (4.2 inches)87%very high
May Weather15°C (59°F)120 mm (4.7 inches)81%very high
June Weather20°C (68°F)108 mm (4.2 inches)83%very high
July Weather23°C (74°F)133 mm (5.2 inches)82%very high
August Weather22°C (72°F)96 mm (3.8 inches)76%very high
September Weather19°C (67°F)89 mm (3.5 inches)77%very high
October Weather13°C (57°F)127 mm (5.0 inches)82%high
November Weather5°C (42°F)104 mm (4.1 inches)89%moderate
December Weather2°C (35°F)100 mm (4.0 inches)86%low

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