nomadseason

December Weather in Detroit, United States

Last updated: June 24, 2025

In December, the average temperature in Detroit, United States hovers around 10°C (50°F). Be prepared for a range of temperatures, with lows dipping to -6°C (21°F) and highs reaching up to 27°C (80°F). Expect 106 mm (4.2 in) of precipitation spread over 8 days and an average humidity of 87%, making it a moist month overall.

December Temperature in Detroit

In December in Detroit, the average temperature is 10°C (50°F), with maximums reaching 27°C (80°F) and minimums dropping as low as -6°C (21°F). This diverse range of temperatures makes Detroit a versatile destination for travelers, so be sure to pack layers for your visit.

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

The chart illustrates December temperature patterns in Detroit, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Detroit, December typically has an average temperature of 10°C (50°F), with highs reaching up to 27°C (80°F) and lows dropping to around -6°C (21°F).
JanFebMarAprMayJunJulAugSepOctNovDec454758637280838378665450
Data source: Temperature data for Detroit generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Detroit

In Detroit in December, the precipitation amount is 106 mm (4.2 in) over a span of 8 days.

December Precipitation Trends in Detroit

The chart displays monthly precipitation patterns in Detroit, 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 Detroit, December typically receives around 106 mm (4.2 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec9014013620919210770958313766106
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Detroit

In Detroit in December humidity is 87%. With an average temperature of 10°C (50°F), this humidity feels like a heavy cloak wrapping around you, making every step feel laborious and the air thick with moisture, challenging your comfort while traveling.

December Average Humidity in Detroit

This chart illustrates the average monthly humidity levels in Detroit, 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 Detroit is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%79%78%78%81%78%73%66%65%72%82%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Detroit

In Detroit 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 Detroit for better planning.

Maximum UV Index Levels in Detroit for December

The chart shows the monthly maximum UV Index (UVI) for Detroit 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 Detroit typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101111111110864
Data source: Detroit 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 Detroit Compares to Other Months

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

This table compares monthly weather conditions in Detroit, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (45°F)90 mm (3.5 inches)80%moderate
February Weather9°C (48°F)140 mm (5.5 inches)79%high
March Weather14°C (58°F)136 mm (5.3 inches)78%very high
April Weather17°C (63°F)209 mm (8.2 inches)78%very high
May Weather22°C (72°F)192 mm (7.6 inches)81%extreme
June Weather26°C (80°F)107 mm (4.2 inches)78%extreme
July Weather28°C (83°F)70 mm (2.8 inches)73%extreme
August Weather28°C (83°F)95 mm (3.8 inches)66%extreme
September Weather25°C (78°F)83 mm (3.3 inches)65%very high
October Weather19°C (66°F)137 mm (5.4 inches)72%very high
November Weather12°C (54°F)66 mm (2.6 inches)82%high
December Weather10°C (50°F)106 mm (4.2 inches)87%moderate

Compare Detroit's Climate with Cities Worldwide