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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 14°C (57°F). Expect fluctuations with minimums dipping to -4°C (25°F) and maximums reaching 27°C (81°F). Be prepared for some rain, as 114 mm (4.5 in) of precipitation typically falls over 7 days. With an average humidity of 88%, it's a month where you’ll definitely feel the dampness in the air!

December Temperature in Madison

In December in Madison, the average temperature is 14°C (57°F). Maximum temperatures can reach up to 27°C (81°F), while the minimum can drop as low as -4°C (25°F). Be prepared for a wide range of weather conditions if you're planning to travel during this time.

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 14°C (57°F), with highs reaching up to 27°C (81°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec546063687580818179746156
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 total precipitation amount is 114 mm (4.5 in) over the course of 7 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 114 mm (4.5 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec67854679821561611451136854114
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 88%. With an average temperature of 14°C (57°F), this humidity feels like a thick blanket enveloping you, making every step feel heavier and giving a sense of stickiness that can drain your energy quickly while exploring.

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 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%82%80%76%73%74%80%79%83%77%84%88%
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 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 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 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec589101111121110864
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 Weather12°C (54°F)67 mm (2.6 inches)85%moderate
February Weather15°C (60°F)85 mm (3.3 inches)82%very high
March Weather17°C (64°F)46 mm (1.8 inches)80%very high
April Weather20°C (69°F)78 mm (3.1 inches)76%very high
May Weather24°C (76°F)82 mm (3.2 inches)73%extreme
June Weather26°C (80°F)156 mm (6.2 inches)74%extreme
July Weather27°C (81°F)161 mm (6.3 inches)80%extreme
August Weather27°C (81°F)145 mm (5.7 inches)79%extreme
September Weather26°C (80°F)113 mm (4.5 inches)83%very high
October Weather23°C (74°F)68 mm (2.7 inches)77%very high
November Weather16°C (61°F)54 mm (2.1 inches)84%high
December Weather14°C (57°F)114 mm (4.5 inches)88%moderate

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