January Weather in Iron Mountain, United States

Last updated: June 24, 2025

In January, the average temperature in Iron Mountain, United States hovers around -8°C (17°F), with extremes ranging from a chilling -31°C (-23°F) to a milder 7°C (44°F). Expect approximately 33 mm (1.3 in) of precipitation spread over 6 days, and prepare for a damp atmosphere with an average humidity of 89%.

January Temperature in Iron Mountain

In January in Iron Mountain, the average temperature is -8°C (17°F), with maximums reaching 7°C (44°F) and minimums plummeting as low as -31°C (-23°F). Travelers should prepare for extreme cold and dress warmly to enjoy the unique winter experiences this destination offers.

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

The chart illustrates January temperature patterns in Iron Mountain, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Iron Mountain, January typically has an average temperature of -8°C (17°F), with highs reaching up to 7°C (44°F) and lows dropping to around -31°C (-23°F).

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

January Precipitation in Iron Mountain

In Iron Mountain, in January, the precipitation amount is 33 mm (1.3 in) over the course of 6 days.

January Precipitation Trends in Iron Mountain

The chart displays monthly precipitation patterns in Iron Mountain, 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 Mountain, January typically receives around 33 mm (1.3 inches) of precipitation spread over approximately 6 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Iron Mountain

In Iron Mountain in January humidity is 89%. With an average temperature of -8°C (17°F), this humidity feels like an icy blanket wrapping around you, making every breath a sharp reminder of the cold as you navigate through the frosty air, dampening the spirit of travel and turning each step into a delicate dance to stay warm.

January Average Humidity in Iron Mountain

This chart illustrates the average monthly humidity levels in Iron Mountain, 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 Mountain 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 Mountain

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

Maximum UV Index Levels in Iron Mountain for January

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

Data source: Iron Mountain 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 Mountain Compares to Other Months

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

This table compares monthly weather conditions in Iron Mountain, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-8°C (17°F)	33 mm (1.3 inches)	89%	low
February Weather	-9°C (17°F)	49 mm (1.9 inches)	90%	moderate
March Weather	-2°C (28°F)	48 mm (1.9 inches)	87%	moderate
April Weather	4°C (39°F)	90 mm (3.5 inches)	84%	high
May Weather	12°C (55°F)	85 mm (3.3 inches)	77%	very high
June Weather	18°C (65°F)	108 mm (4.3 inches)	75%	very high
July Weather	21°C (70°F)	103 mm (4.1 inches)	74%	very high
August Weather	19°C (67°F)	118 mm (4.6 inches)	73%	very high
September Weather	15°C (60°F)	90 mm (3.5 inches)	78%	high
October Weather	8°C (46°F)	99 mm (3.9 inches)	84%	moderate
November Weather	0°C (32°F)	51 mm (2.0 inches)	89%	moderate
December Weather	-5°C (23°F)	55 mm (2.2 inches)	87%	low