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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 (35°F), creating a chilly atmosphere perfect for bundling up. While temperatures can dip as low as -21°C (-6°F), they can also reach a pleasant 23°C (74°F) during the day. Expect modest precipitation, with about 35 mm (1.4 in) spread over 5 days, and a notable average humidity of 83%, adding to the crisp feel of the season.

December Temperature in Milan

In December in Milan, the average temperature is 1°C (35°F). It can reach a maximum of 23°C (74°F) and drop to a minimum of -21°C (-6°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

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 (35°F), with highs reaching up to 23°C (74°F) and lows dropping to around -21°C (-6°F).
JanFebMarAprMayJunJulAugSepOctNovDec272943516476797570554134
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 precipitation amount is 35 mm (1.4 in) over a span of 5 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 35 mm (1.4 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec534810584169124105941091335235
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 83%. With an average temperature of 1°C (35°F), this humidity feels like a damp chill enveloping you, making travel uncomfortable as you contend with the biting cold paired with the heavy moisture in the air.

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 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%80%77%78%77%81%81%77%73%75%85%83%
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 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 Milan, you can check the information here.

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 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3569101111108643
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-3°C (27°F)53 mm (2.1 inches)78%moderate
February Weather-2°C (29°F)48 mm (1.9 inches)80%moderate
March Weather6°C (43°F)105 mm (4.1 inches)77%high
April Weather11°C (52°F)84 mm (3.3 inches)77%very high
May Weather18°C (64°F)169 mm (6.6 inches)77%very high
June Weather24°C (76°F)124 mm (4.9 inches)81%extreme
July Weather26°C (79°F)105 mm (4.1 inches)81%extreme
August Weather24°C (75°F)94 mm (3.7 inches)77%very high
September Weather21°C (70°F)108 mm (4.3 inches)73%very high
October Weather13°C (55°F)133 mm (5.2 inches)75%high
November Weather5°C (41°F)52 mm (2.1 inches)85%moderate
December Weather1°C (35°F)35 mm (1.4 inches)83%moderate

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