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December Weather in Milan, United States

Last updated: June 24, 2025

In December, the average temperature in Milan, United States hovers around -1°C (31°F), with extremes dipping as low as -22°C (-7°F) and reaching a high of 15°C (60°F). Expect a total precipitation of about 20 mm (0.8 in) over the course of 4 days, contributing to an average humidity level of 82%. Stay prepared for chilly conditions!

December Temperature in Milan

In December in Milan, the average temperature is -1°C (31°F), with maximums reaching 15°C (60°F) and minimums dropping as low as -22°C (-7°F). Travelers should be well-prepared for potentially chilly weather and significant temperature variations.

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

The chart illustrates December temperature patterns in Milan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Milan, December typically has an average temperature of -1°C (31°F), with highs reaching up to 15°C (60°F) and lows dropping to around -22°C (-7°F).
JanFebMarAprMayJunJulAugSepOctNovDec283341505970716964514131
Data source: Temperature data for Milan 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 Milan

In Milan in December, the total precipitation amount is 20 mm (0.8 in) spread over a period of 4 days.

December Precipitation Trends in Milan

The chart displays monthly precipitation patterns in Milan, 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 Milan, December typically receives around 20 mm (0.8 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec242530191911713233261420
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Milan

In Milan in December humidity is 82%. With an average temperature of -1°C (31°F), this humidity feels like a heavy, biting chill that seeps through layers of clothing, making outdoor activities uncomfortable and urging travelers to seek shelter or warm beverages to combat the cold.

December Average Humidity in Milan

This chart illustrates the average monthly humidity levels in Milan, 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 Milan is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%83%71%61%48%36%37%46%62%74%82%82%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Milan

In Milan 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 Milan for better planning.

Maximum UV Index Levels in Milan for December

The chart shows the monthly maximum UV Index (UVI) for Milan 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 Milan typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec579111213131211864
Data source: Milan 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 Milan Compares to Other Months

Weather in Milan varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Milan, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Milan, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)24 mm (1.0 inches)81%moderate
February Weather0°C (33°F)25 mm (1.0 inches)83%high
March Weather5°C (42°F)30 mm (1.2 inches)71%very high
April Weather10°C (50°F)19 mm (0.8 inches)61%extreme
May Weather15°C (59°F)19 mm (0.7 inches)48%extreme
June Weather21°C (70°F)11 mm (0.4 inches)36%extreme
July Weather22°C (71°F)71 mm (2.8 inches)37%extreme
August Weather21°C (70°F)32 mm (1.3 inches)46%extreme
September Weather18°C (64°F)33 mm (1.3 inches)62%extreme
October Weather11°C (51°F)26 mm (1.0 inches)74%very high
November Weather5°C (41°F)14 mm (0.5 inches)82%high
December Weather-1°C (31°F)20 mm (0.8 inches)82%moderate

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