January Weather in Lannon, United States

Last updated: June 24, 2025

In January, the average temperature in Lannon, United States hovers around -5°C (23°F), with a range that can drop as low as -32°C (-25°F) and peak at 13°C (56°F). Expect 54 mm (2.1 in) of precipitation spread over about 7 days, and high humidity levels at 85% create a chilly and damp atmosphere.

January Temperature in Lannon

In January in Lannon, the average temperature is -5°C (23°F), with maximums reaching up to 13°C (56°F) and minimums plummeting to as low as -32°C (-25°F). Travelers should be well-prepared for extreme temperature fluctuations during this time.

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

The chart illustrates January temperature patterns in Lannon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lannon, January typically has an average temperature of -5°C (23°F), with highs reaching up to 13°C (56°F) and lows dropping to around -32°C (-25°F).

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

January Precipitation in Lannon

In Lannon in January, the precipitation amount is 54 mm (2.1 in) over a duration of 7 days.

January Precipitation Trends in Lannon

The chart displays monthly precipitation patterns in Lannon, 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 Lannon, January typically receives around 54 mm (2.1 inches) of precipitation spread over approximately 7 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 Lannon

In Lannon in January, humidity is 85%. With an average temperature of -5°C (23°F), this humidity feels like a biting chill that clings to your skin, making even the briefest outdoor excursions feel daunting and uncomfortable.

January Average Humidity in Lannon

This chart illustrates the average monthly humidity levels in Lannon, 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 Lannon is approximately 85%, 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 Lannon

In Lannon 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 Lannon, you can check the information here.

Maximum UV Index Levels in Lannon for January

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

Data source: Lannon 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 Lannon Compares to Other Months

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

This table compares monthly weather conditions in Lannon, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-5°C (23°F)	54 mm (2.1 inches)	85%	moderate
February Weather	-5°C (24°F)	51 mm (2.0 inches)	85%	moderate
March Weather	2°C (36°F)	61 mm (2.4 inches)	85%	moderate
April Weather	7°C (45°F)	107 mm (4.2 inches)	85%	very high
May Weather	14°C (58°F)	126 mm (5.0 inches)	78%	very high
June Weather	20°C (69°F)	106 mm (4.2 inches)	80%	very high
July Weather	23°C (74°F)	97 mm (3.8 inches)	78%	very high
August Weather	22°C (71°F)	87 mm (3.4 inches)	76%	very high
September Weather	18°C (65°F)	98 mm (3.9 inches)	79%	high
October Weather	11°C (52°F)	112 mm (4.4 inches)	83%	moderate
November Weather	3°C (37°F)	46 mm (1.8 inches)	88%	moderate
December Weather	-1°C (30°F)	46 mm (1.8 inches)	81%	low