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January Weather in Napoleon, United States

Last updated: June 24, 2025

In Napoleon, United States, the average temperature in January hovers around -2°C (28°F). During this time, it can dip as low as -26°C (-15°F), while occasionally climbing to a high of 17°C (62°F). The region experiences 69 mm (2.7 in) of precipitation spread over approximately 9 days, and the average humidity remains high at 88%.

January Temperature in Napoleon

In January in Napoleon, the average temperature is -2°C (28°F). Maximum temperatures can reach 17°C (62°F), while the minimum can drop as low as -26°C (-15°F). Travelers should be prepared for a wide range of weather conditions during this time.

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 -2°C (28°F), with highs reaching up to 17°C (62°F) and lows dropping to around -26°C (-15°F).
JanFebMarAprMayJunJulAugSepOctNovDec283039496271757368564134
Data source: Temperature data for Napoleon generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Napoleon

In Napoleon in January, the precipitation amount is 69 mm (2.7 in) spread over 9 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 69 mm (2.7 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec697088931391121038857908156
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Napoleon

In Napoleon in January humidity is 88%. With an average temperature of -2°C (28°F), this humidity feels like an icy cling to your skin, making every breath feel brisk and sharp, while the dampness cuts through layers of clothing, leaving travelers yearning for warmth and comfort.

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 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%87%88%81%82%81%78%78%82%89%86%
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.
JanFebMarAprMayJunJulAugSepOctNovDec35699101098642
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.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (28°F)69 mm (2.7 inches)88%moderate
February Weather-1°C (30°F)70 mm (2.8 inches)87%moderate
March Weather4°C (40°F)88 mm (3.5 inches)87%high
April Weather9°C (49°F)93 mm (3.7 inches)87%very high
May Weather16°C (62°F)139 mm (5.5 inches)81%very high
June Weather22°C (72°F)112 mm (4.4 inches)82%very high
July Weather24°C (76°F)103 mm (4.0 inches)81%very high
August Weather23°C (73°F)88 mm (3.5 inches)78%very high
September Weather20°C (68°F)57 mm (2.2 inches)78%very high
October Weather13°C (56°F)90 mm (3.6 inches)82%high
November Weather5°C (41°F)81 mm (3.2 inches)89%moderate
December Weather1°C (34°F)56 mm (2.2 inches)86%low

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