January Weather in South Williamson, United States

Last updated: June 24, 2025

In South Williamson, United States, the average temperature in January hovers around 3°C (37°F). Expect a chilly minimum of -17°C (2°F) and a surprising maximum of 24°C (75°F). During this month, you'll encounter approximately 101 mm (4.0 in) of precipitation spread over 12 days, accompanied by a high average humidity of 87%. Stay prepared for a range of weather in your travels!

January Temperature in South Williamson

In January in South Williamson, the average temperature is 3°C (37°F). Maximum temperatures can reach 24°C (75°F), while the minimum can drop as low as -17°C (2°F). It's advisable to pack layers to accommodate the significant temperature range during your travels.

January Weather in South Williamson: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in South Williamson, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In South Williamson, January typically has an average temperature of 3°C (37°F), with highs reaching up to 24°C (75°F) and lows dropping to around -17°C (2°F).

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

January Precipitation in South Williamson

In South Williamson in January, the precipitation amount is 101 mm (4.0 in) spread over 12 days.

January Precipitation Trends in South Williamson

The chart displays monthly precipitation patterns in South Williamson, 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 South Williamson, January typically receives around 101 mm (4.0 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 South Williamson

In South Williamson in January, humidity is 87%. With an average temperature of 3°C (37°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities uncomfortable and necessitating proper layers to stay warm while navigating the wet conditions.

January Average Humidity in South Williamson

This chart illustrates the average monthly humidity levels in South Williamson, 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 South Williamson 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 South Williamson

In South Williamson 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 South Williamson, you can check the information here.

Maximum UV Index Levels in South Williamson for January

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

Data source: South Williamson 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 South Williamson Compares to Other Months

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

This table compares monthly weather conditions in South Williamson, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	3°C (37°F)	101 mm (4.0 inches)	87%	moderate
February Weather	6°C (43°F)	170 mm (6.7 inches)	87%	high
March Weather	9°C (48°F)	129 mm (5.1 inches)	86%	high
April Weather	13°C (56°F)	133 mm (5.2 inches)	84%	very high
May Weather	19°C (66°F)	136 mm (5.4 inches)	83%	very high
June Weather	22°C (72°F)	158 mm (6.2 inches)	83%	very high
July Weather	25°C (76°F)	119 mm (4.7 inches)	79%	extreme
August Weather	23°C (74°F)	121 mm (4.8 inches)	66%	very high
September Weather	21°C (70°F)	107 mm (4.2 inches)	68%	very high
October Weather	16°C (61°F)	124 mm (4.9 inches)	78%	high
November Weather	8°C (46°F)	81 mm (3.2 inches)	89%	moderate
December Weather	5°C (42°F)	126 mm (4.9 inches)	86%	moderate