January Weather in Lake Mills, United States

Last updated: June 24, 2025

In January, the average temperature in Lake Mills, United States hovers around -8°C (18°F). However, don't be surprised by the extremes—minimums can plunge to -34°C (-29°F), while highs can reach a mild 10°C (50°F). Expect 35 mm (1.4 in) of precipitation over about 5 days, and a notable average humidity of 82% will add to the chilly atmosphere.

January Temperature in Lake Mills

In January in Lake Mills, the average temperature is -8°C (18°F). Maximum temperatures can reach 10°C (50°F) while minimums can plummet to as low as -34°C (-29°F). Be sure to pack warm clothing and prepare for extreme weather conditions when traveling to Lake Mills during this time.

January Weather in Lake Mills: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Lake Mills, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lake Mills, January typically has an average temperature of -8°C (18°F), with highs reaching up to 10°C (50°F) and lows dropping to around -34°C (-29°F).

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

January Precipitation in Lake Mills

In Lake Mills in January, the precipitation amount is 35 mm (1.4 in) over a span of 5 days.

January Precipitation Trends in Lake Mills

The chart displays monthly precipitation patterns in Lake Mills, 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 Lake Mills, January typically receives around 35 mm (1.4 inches) of precipitation spread over approximately 5 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 Lake Mills

In Lake Mills in January humidity is 82%. With an average temperature of -8°C (18°F), this humidity feels like a frigid dampness that seeps into your bones, making travel uncomfortable and prompting you to bundle up tightly against the chill.

January Average Humidity in Lake Mills

This chart illustrates the average monthly humidity levels in Lake Mills, 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 Lake Mills is approximately 82%, 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 Lake Mills

In Lake Mills in January, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Lake Mills, you can check the information here.

Maximum UV Index Levels in Lake Mills for January

The chart shows the monthly maximum UV Index (UVI) for Lake Mills 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 Lake Mills typically reaches 3, which falls under the moderate exposure category.

Data source: Lake Mills 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 Lake Mills Compares to Other Months

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

This table compares monthly weather conditions in Lake Mills, 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 (18°F)	35 mm (1.4 inches)	82%	moderate
February Weather	-8°C (17°F)	47 mm (1.8 inches)	84%	moderate
March Weather	1°C (34°F)	72 mm (2.8 inches)	80%	moderate
April Weather	7°C (45°F)	85 mm (3.3 inches)	81%	very high
May Weather	15°C (60°F)	152 mm (6.0 inches)	74%	very high
June Weather	22°C (72°F)	139 mm (5.5 inches)	80%	very high
July Weather	23°C (74°F)	100 mm (4.0 inches)	80%	very high
August Weather	21°C (70°F)	114 mm (4.5 inches)	77%	very high
September Weather	18°C (65°F)	108 mm (4.2 inches)	75%	very high
October Weather	9°C (49°F)	104 mm (4.1 inches)	80%	moderate
November Weather	1°C (35°F)	45 mm (1.8 inches)	87%	moderate
December Weather	-3°C (26°F)	38 mm (1.5 inches)	83%	moderate