January Weather in Napoleon, United States

Last updated: June 24, 2025

In Napoleon, United States, the average temperature in January hovers around -10°C (14°F). However, temperatures can dip as low as -37°C (-34°F) or rise to a maximum of 7°C (45°F). Expect 15 mm (0.6 in) of precipitation spread over 4 days, accompanied by high average humidity at 87%. Stay warm and prepared!

January Temperature in Napoleon

In January in Napoleon, the average temperature is -10°C (14°F), with maximums reaching 7°C (45°F) and minimums dropping as low as -37°C (-34°F). Travelers should be prepared for extreme cold conditions and dress warmly while exploring the winter scenery.

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

The chart illustrates January temperature patterns in Napoleon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Napoleon, January typically has an average temperature of -10°C (14°F), with highs reaching up to 7°C (45°F) and lows dropping to around -37°C (-34°F).

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

January Precipitation in Napoleon

In Napoleon in January, the precipitation amount is 15 mm (0.6 in) occurring over the course of 4 days.

January Precipitation Trends in Napoleon

The chart displays monthly precipitation patterns in Napoleon, 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 Napoleon, January typically receives around 15 mm (0.6 inches) of precipitation spread over approximately 4 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 Napoleon

In Napoleon in January, humidity is 87%. With an average temperature of -10°C (14°F), this humidity feels like an icy grip that seeps into your bones, making any outdoor activity a chilling challenge and causing you to rethink your travel plans.

January Average Humidity in Napoleon

This chart illustrates the average monthly humidity levels in Napoleon, 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 Napoleon is approximately 87%, 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 Napoleon

In Napoleon 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 Napoleon, you can check the information here.

Maximum UV Index Levels in Napoleon for January

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

Data source: Napoleon 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 Napoleon Compares to Other Months

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

This table compares monthly weather conditions in Napoleon, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-10°C (14°F)	15 mm (0.6 inches)	87%	moderate
February Weather	-12°C (11°F)	17 mm (0.7 inches)	89%	moderate
March Weather	-2°C (29°F)	26 mm (1.0 inches)	82%	moderate
April Weather	4°C (39°F)	35 mm (1.4 inches)	79%	very high
May Weather	12°C (55°F)	61 mm (2.4 inches)	74%	very high
June Weather	20°C (68°F)	85 mm (3.3 inches)	78%	very high
July Weather	22°C (73°F)	73 mm (2.9 inches)	76%	very high
August Weather	20°C (69°F)	94 mm (3.7 inches)	77%	very high
September Weather	15°C (60°F)	61 mm (2.4 inches)	72%	high
October Weather	6°C (43°F)	66 mm (2.6 inches)	74%	moderate
November Weather	-1°C (30°F)	17 mm (0.7 inches)	85%	moderate
December Weather	-6°C (21°F)	29 mm (1.1 inches)	84%	low