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January Weather in Madison, United States

Last updated: June 24, 2025

In Madison, United States, the average temperature in January hovers around 1°C (34°F). However, be prepared for a wide range, with minimums plunging to -19°C (-1°F) and maximum highs reaching 20°C (68°F). During this month, expect approximately 85 mm (3.4 in) of precipitation spread over 9 days, paired with an average humidity of 87%.

January Temperature in Madison

In January in Madison, the average temperature is 1°C (34°F). Maximum temperatures can reach 20°C (68°F), while minimums can drop as low as -19°C (-1°F). It's advisable to pack both warm clothing and lighter layers for a comfortable trip.

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 1°C (34°F), with highs reaching up to 20°C (68°F) and lows dropping to around -19°C (-1°F).
JanFebMarAprMayJunJulAugSepOctNovDec343846556774787671604440
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 total precipitation amount is 85 mm (3.4 in) recorded 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 85 mm (3.4 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec8511913713412314299939710096106
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 87%. With an average temperature of 1°C (34°F), this humidity feels like a chilling blanket enveloping you, making every step outside feel heavy and damp, and leaving you longing for warmth and comfort while traveling.

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.
JanFebMarAprMayJunJulAugSepOctNovDec87%85%86%84%79%82%79%70%69%76%88%87%
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.
JanFebMarAprMayJunJulAugSepOctNovDec357910111098643
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 Weather1°C (34°F)85 mm (3.4 inches)87%moderate
February Weather3°C (38°F)119 mm (4.7 inches)85%moderate
March Weather8°C (47°F)137 mm (5.4 inches)86%high
April Weather13°C (55°F)134 mm (5.3 inches)84%very high
May Weather19°C (67°F)123 mm (4.9 inches)79%very high
June Weather24°C (75°F)142 mm (5.6 inches)82%extreme
July Weather25°C (78°F)99 mm (3.9 inches)79%very high
August Weather24°C (76°F)93 mm (3.7 inches)70%very high
September Weather22°C (71°F)97 mm (3.8 inches)69%very high
October Weather15°C (60°F)100 mm (3.9 inches)76%high
November Weather7°C (45°F)96 mm (3.8 inches)88%moderate
December Weather4°C (40°F)106 mm (4.2 inches)87%moderate

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