January Weather in Detroit, United States

Last updated: June 24, 2025

In January, the average temperature in Detroit, United States hovers around -6°C (21°F), with extremes ranging from a chilly -28°C (-19°F) to a milder 12°C (55°F). Expect precipitation totaling 86 mm (3.4 in) over approximately 8 days, paired with an average humidity of 88%. Prepare for a brisk and damp atmosphere!

January Temperature in Detroit

In January in Detroit, the average temperature is -6°C (21°F). The maximum can reach 12°C (55°F) and the minimum can be as low as -28°C (-19°F). This means that travelers should prepare for a cold climate and pack accordingly to ensure comfort during their visit.

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

The chart illustrates January 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, January typically has an average temperature of -6°C (21°F), with highs reaching up to 12°C (55°F) and lows dropping to around -28°C (-19°F).

Data source: Temperature data for Detroit generated using information from the Copernicus Climate Change Service.

January Precipitation in Detroit

In Detroit in January, the precipitation amount reaches 86 mm (3.4 in) over the course of 8 days.

January Precipitation Trends in Detroit

The chart displays monthly precipitation patterns in Detroit, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Detroit, January typically receives around 86 mm (3.4 inches) of precipitation spread over approximately 8 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

January Humidity in Detroit

In Detroit in January, humidity is 88%. With an average temperature of -6°C (21°F), this humidity feels like an intense chill that seeps into your bones, making outdoor activities uncomfortable and requiring extra layers to stay warm.

January Average Humidity in Detroit

This chart illustrates the average monthly humidity levels in Detroit, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Detroit is approximately 88%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Detroit

In Detroit in January, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Detroit, you can visit Hourly UV Index in Detroit.

Maximum UV Index Levels in Detroit for January

The chart shows the monthly maximum UV Index (UVI) for Detroit in January, 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 January, the maximum UV index in Detroit typically reaches 2, which falls under the low exposure category.

Data source: Detroit January 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 January 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 January’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 January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (21°F)	86 mm (3.4 inches)	88%	low
February Weather	-5°C (24°F)	81 mm (3.2 inches)	88%	moderate
March Weather	-1°C (31°F)	71 mm (2.8 inches)	85%	moderate
April Weather	6°C (43°F)	121 mm (4.8 inches)	81%	high
May Weather	12°C (54°F)	91 mm (3.6 inches)	76%	very high
June Weather	18°C (64°F)	75 mm (2.9 inches)	74%	very high
July Weather	21°C (70°F)	103 mm (4.1 inches)	74%	very high
August Weather	20°C (69°F)	73 mm (2.9 inches)	74%	very high
September Weather	16°C (62°F)	70 mm (2.8 inches)	77%	high
October Weather	10°C (50°F)	119 mm (4.7 inches)	82%	moderate
November Weather	2°C (36°F)	111 mm (4.4 inches)	85%	moderate
December Weather	-4°C (26°F)	113 mm (4.5 inches)	84%	low