January Weather in Mullan, United States

Last updated: June 24, 2025

In January, the average temperature in Mullan, United States hovers around -3°C (26°F). Expect chilly conditions, with minimum lows reaching -24°C (-10°F) and the occasional maximum of 6°C (43°F). It’s a wet month too, with 112 mm (4.4 in) of precipitation spread over 14 days. Moreover, the atmosphere is quite humid, with an average humidity of 89%. Dress warmly and be prepared for those drizzly days!

January Temperature in Mullan

In January in Mullan, the average temperature is -3°C (26°F), with a maximum that can reach 6°C (43°F) and a minimum that can plummet to -24°C (-10°F). Travelers should prepare for extremely cold conditions and dress accordingly to fully enjoy their trip.

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

The chart illustrates January temperature patterns in Mullan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mullan, January typically has an average temperature of -3°C (26°F), with highs reaching up to 6°C (43°F) and lows dropping to around -24°C (-10°F).

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

January Precipitation in Mullan

In Mullan in January, the precipitation amount is 112 mm (4.4 in) spread over 14 days.

January Precipitation Trends in Mullan

The chart displays monthly precipitation patterns in Mullan, 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 Mullan, January typically receives around 112 mm (4.4 inches) of precipitation spread over approximately 14 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 Mullan

In Mullan in January, humidity is 89%. With an average temperature of -3°C (26°F), this humidity feels like a biting chill that seeps into your bones, making travel uncomfortable and requiring layered clothing to stay warm as you explore.

January Average Humidity in Mullan

This chart illustrates the average monthly humidity levels in Mullan, 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 Mullan 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 Mullan

In Mullan 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 Mullan, you can visit Hourly UV Index in Mullan.

Maximum UV Index Levels in Mullan for January

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

Data source: Mullan 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 Mullan Compares to Other Months

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

This table compares monthly weather conditions in Mullan, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (26°F)	112 mm (4.4 inches)	89%	low
February Weather	-5°C (24°F)	151 mm (5.9 inches)	89%	moderate
March Weather	0°C (33°F)	99 mm (3.9 inches)	87%	high
April Weather	4°C (40°F)	102 mm (4.0 inches)	84%	high
May Weather	10°C (51°F)	90 mm (3.5 inches)	77%	very high
June Weather	15°C (59°F)	54 mm (2.1 inches)	78%	very high
July Weather	20°C (68°F)	12 mm (0.5 inches)	77%	very high
August Weather	19°C (67°F)	26 mm (1.0 inches)	64%	very high
September Weather	13°C (56°F)	48 mm (1.9 inches)	62%	high
October Weather	5°C (42°F)	108 mm (4.3 inches)	79%	moderate
November Weather	1°C (34°F)	138 mm (5.4 inches)	87%	moderate
December Weather	-3°C (28°F)	136 mm (5.4 inches)	90%	low