January Weather in Beloit, United States

Last updated: June 24, 2025

In January, the average temperature in Beloit, United States hovers around -2°C (29°F), but extremes can vary significantly, reaching a brisk -24°C (-11°F) at the lowest and a surprising 20°C (69°F) at the highest. Expect about 87 mm (3.4 in) of precipitation spread across 12 days, and prepare for a notable average humidity of 88%.

January Temperature in Beloit

In January in Beloit, the average temperature is -2°C (29°F). Maximums can reach 20°C (69°F), and minimums can be as low as -24°C (-11°F). Travelers should be prepared for a wide range of temperatures when visiting during this month.

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

The chart illustrates January temperature patterns in Beloit, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Beloit, January typically has an average temperature of -2°C (29°F), with highs reaching up to 20°C (69°F) and lows dropping to around -24°C (-11°F).

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

January Precipitation in Beloit

In Beloit in January, the precipitation amount is 87 mm (3.4 in) over the course of 12 days.

January Precipitation Trends in Beloit

The chart displays monthly precipitation patterns in Beloit, 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 Beloit, January typically receives around 87 mm (3.4 inches) of precipitation spread over approximately 12 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 Beloit

In Beloit in January, humidity is 88%. With an average temperature of -2°C (29°F), this humidity feels like a biting chill in the air that penetrates layers of clothing, making outdoor activities challenging and potentially uncomfortable for travelers.

January Average Humidity in Beloit

This chart illustrates the average monthly humidity levels in Beloit, 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 Beloit is approximately 88%, 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 Beloit

In Beloit 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 Beloit, you can check the information here.

Maximum UV Index Levels in Beloit for January

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

Data source: Beloit 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 Beloit Compares to Other Months

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

This table compares monthly weather conditions in Beloit, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-2°C (29°F)	87 mm (3.4 inches)	88%	moderate
February Weather	0°C (33°F)	99 mm (3.9 inches)	88%	moderate
March Weather	4°C (40°F)	104 mm (4.1 inches)	87%	high
April Weather	10°C (50°F)	133 mm (5.3 inches)	87%	very high
May Weather	16°C (61°F)	123 mm (4.8 inches)	81%	very high
June Weather	21°C (70°F)	134 mm (5.3 inches)	83%	very high
July Weather	23°C (74°F)	135 mm (5.3 inches)	82%	very high
August Weather	22°C (72°F)	102 mm (4.0 inches)	76%	very high
September Weather	19°C (67°F)	111 mm (4.4 inches)	77%	very high
October Weather	13°C (56°F)	110 mm (4.3 inches)	82%	high
November Weather	5°C (41°F)	93 mm (3.6 inches)	89%	moderate
December Weather	2°C (35°F)	92 mm (3.6 inches)	86%	low