January Weather in Iron River, United States

Last updated: June 24, 2025

In January in Iron River, United States, the average temperature hovers around -9°C (15°F). Expect extremes, with minimums plunging to -31°C (-24°F) and maximums reaching up to 6°C (42°F). During this chilly month, anticipate about 34 mm (1.3 in) of precipitation over 7 days, accompanied by a high average humidity of 89%.

January Temperature in Iron River

In January in Iron River, the average temperature is -9°C (15°F), with maximums reaching 6°C (42°F) and minimums plummeting to -31°C (-24°F). Be prepared for extremely cold weather and dress accordingly if you plan to travel during this time.

January Weather in Iron River: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Iron River, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Iron River, January typically has an average temperature of -9°C (15°F), with highs reaching up to 6°C (42°F) and lows dropping to around -31°C (-24°F).

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

January Precipitation in Iron River

In Iron River in January, the total precipitation amount is 34 mm (1.3 in) over the course of 7 days.

January Precipitation Trends in Iron River

The chart displays monthly precipitation patterns in Iron River, 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 Iron River, January typically receives around 34 mm (1.3 inches) of precipitation spread over approximately 7 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 Iron River

In Iron River in January, humidity is 89%. With an average temperature of -9°C (15°F), this humidity feels like walking through a thick fog, making it challenging to breathe and creating a sharp chill that penetrates even the warmest of clothing, which can be a struggle for travelers.

January Average Humidity in Iron River

This chart illustrates the average monthly humidity levels in Iron River, 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 Iron River is approximately 89%, 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 Iron River

In Iron River 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 Iron River, you can visit Hourly UV Index in Iron River.

Maximum UV Index Levels in Iron River for January

The chart shows the monthly maximum UV Index (UVI) for Iron River 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 Iron River typically reaches 2, which falls under the low exposure category.

Data source: Iron River 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 Iron River Compares to Other Months

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

This table compares monthly weather conditions in Iron River, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-9°C (15°F)	34 mm (1.3 inches)	89%	low
February Weather	-10°C (15°F)	51 mm (2.0 inches)	90%	moderate
March Weather	-3°C (27°F)	47 mm (1.8 inches)	87%	moderate
April Weather	3°C (38°F)	91 mm (3.6 inches)	84%	very high
May Weather	12°C (53°F)	80 mm (3.2 inches)	77%	very high
June Weather	18°C (64°F)	94 mm (3.7 inches)	75%	very high
July Weather	20°C (69°F)	98 mm (3.9 inches)	74%	very high
August Weather	18°C (65°F)	110 mm (4.3 inches)	73%	very high
September Weather	14°C (58°F)	96 mm (3.8 inches)	78%	high
October Weather	7°C (44°F)	109 mm (4.3 inches)	84%	moderate
November Weather	-2°C (29°F)	53 mm (2.1 inches)	89%	moderate
December Weather	-6°C (21°F)	57 mm (2.3 inches)	87%	low