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December Weather in Madison, United States

Last updated: June 24, 2025

In December, the average temperature in Madison, United States hovers around -4°C (24°F). Expect some chilly extremes, with temperatures dipping as low as -25°C (-13°F) and climbing up to a mild 14°C (57°F). During this month, precipitation totals about 37 mm (1.4 in) over 6 days, accompanied by an average humidity of 84%.

December Temperature in Madison

In December in Madison, the average temperature is -4°C (24°F), with maximums reaching 14°C (57°F) and minimums plunging as low as -25°C (-13°F). Travelers should be prepared for a wide range of temperatures and dress accordingly to enjoy their visit.

December Weather in Madison: Daily Temperature Highs, Lows, and Averages

The chart illustrates December 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, December typically has an average temperature of -4°C (24°F), with highs reaching up to 14°C (57°F) and lows dropping to around -25°C (-13°F).
JanFebMarAprMayJunJulAugSepOctNovDec151532425871747064473424
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.

December Precipitation in Madison

In Madison in December, the precipitation amount is 37 mm (1.4 in) over a span of 6 days.

December Precipitation Trends in Madison

The chart displays monthly precipitation patterns in Madison, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Madison, December typically receives around 37 mm (1.4 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec22195370998610112986842637
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Madison

In Madison in December humidity is 84%. With an average temperature of -4°C (24°F), this humidity feels like an uninviting chill that seeps into your bones, making outdoor activities uncomfortable and travel quite challenging.

December Average Humidity in Madison

This chart illustrates the average monthly humidity levels in Madison, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Madison is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%89%81%82%76%81%82%83%82%82%87%84%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Madison

In Madison in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Madison, you can visit Hourly UV Index in Madison.

Maximum UV Index Levels in Madison for December

The chart shows the monthly maximum UV Index (UVI) for Madison in December, 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 December, the maximum UV index in Madison typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3557910997532
Data source: Madison December 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 December 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 December’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 December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-9°C (16°F)22 mm (0.9 inches)85%moderate
February Weather-9°C (16°F)19 mm (0.7 inches)89%moderate
March Weather0°C (32°F)53 mm (2.1 inches)81%moderate
April Weather5°C (42°F)70 mm (2.7 inches)82%high
May Weather14°C (58°F)99 mm (3.9 inches)76%very high
June Weather22°C (72°F)86 mm (3.4 inches)81%very high
July Weather23°C (74°F)101 mm (4.0 inches)82%very high
August Weather21°C (71°F)129 mm (5.1 inches)83%very high
September Weather18°C (64°F)86 mm (3.4 inches)82%high
October Weather8°C (48°F)84 mm (3.3 inches)82%moderate
November Weather1°C (34°F)26 mm (1.0 inches)87%moderate
December Weather-4°C (24°F)37 mm (1.4 inches)84%low

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