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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 11°C (52°F). Expect a minimum of -7°C (20°F) and a maximum of 27°C (82°F). With an average precipitation of 122 mm (4.8 in) spread across 11 days, it’s wise to be prepared for some rain. The air is notably humid, with an average humidity level of 88%—definitely a month where you can feel the moisture in the air!

December Temperature in Madison

In December in Madison, the average temperature is 11°C (52°F), with maximums reaching up to 27°C (82°F) and minimums dropping as low as -7°C (20°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

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 11°C (52°F), with highs reaching up to 27°C (82°F) and lows dropping to around -7°C (20°F).
JanFebMarAprMayJunJulAugSepOctNovDec485360647379828178685451
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 122 mm (4.8 in) over a span of 11 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 122 mm (4.8 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec1131651281641221411001299411372122
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 11°C (52°F), this humidity feels like a heavy blanket wrapping around you, making travel uncomfortable and the air feel thick, encouraging you to seek shelter or stay hydrated as you explore.

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.
JanFebMarAprMayJunJulAugSepOctNovDec84%83%80%82%83%80%80%75%73%76%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.
JanFebMarAprMayJunJulAugSepOctNovDec478111112111110864
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 Weather9°C (48°F)113 mm (4.4 inches)84%moderate
February Weather11°C (53°F)164 mm (6.5 inches)83%high
March Weather16°C (60°F)128 mm (5.0 inches)80%very high
April Weather18°C (64°F)164 mm (6.5 inches)82%extreme
May Weather23°C (74°F)122 mm (4.8 inches)83%extreme
June Weather26°C (79°F)141 mm (5.5 inches)80%extreme
July Weather28°C (82°F)100 mm (3.9 inches)80%extreme
August Weather27°C (81°F)129 mm (5.1 inches)75%extreme
September Weather26°C (78°F)94 mm (3.7 inches)73%very high
October Weather20°C (69°F)113 mm (4.4 inches)76%very high
November Weather12°C (55°F)72 mm (2.8 inches)84%high
December Weather11°C (52°F)122 mm (4.8 inches)88%moderate

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