January Weather in Williamsburg, United States

Last updated: June 24, 2025

In January, the average temperature in Williamsburg, United States hovers around -6°C (22°F). However, temperatures can swing dramatically, with minimums dipping to -32°C (-25°F) and maximums reaching up to 13°C (55°F). During this month, you can expect an average precipitation of 48 mm (1.9 in) spread over about 7 days, alongside a relatively high humidity level of 81%.

January Temperature in Williamsburg

In January in Williamsburg, the average temperature is -6°C (22°F). The maximum can reach 13°C (55°F) while the minimum can drop as low as -32°C (-25°F). Travelers should be prepared for a wide range of temperatures and dress accordingly for the cold.

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

The chart illustrates January temperature patterns in Williamsburg, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Williamsburg, January typically has an average temperature of -6°C (22°F), with highs reaching up to 13°C (55°F) and lows dropping to around -32°C (-25°F).

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

January Precipitation in Williamsburg

In Williamsburg in January, the total precipitation amount is 48 mm (1.9 in) over a span of 7 days.

January Precipitation Trends in Williamsburg

The chart displays monthly precipitation patterns in Williamsburg, 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 Williamsburg, January typically receives around 48 mm (1.9 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 Williamsburg

In Williamsburg in January, humidity is 81%. With an average temperature of -6°C (22°F), this humidity feels like a biting chill that penetrates layers of clothing, making travel uncomfortable and the air heavy with frost.

January Average Humidity in Williamsburg

This chart illustrates the average monthly humidity levels in Williamsburg, 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 Williamsburg is approximately 81%, 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 Williamsburg

In Williamsburg 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 Williamsburg, you can check the information here.

Maximum UV Index Levels in Williamsburg for January

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

Data source: Williamsburg 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 Williamsburg Compares to Other Months

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

This table compares monthly weather conditions in Williamsburg, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (22°F)	48 mm (1.9 inches)	81%	moderate
February Weather	-5°C (24°F)	54 mm (2.1 inches)	81%	moderate
March Weather	4°C (39°F)	78 mm (3.1 inches)	81%	high
April Weather	9°C (49°F)	84 mm (3.3 inches)	82%	very high
May Weather	17°C (62°F)	158 mm (6.2 inches)	78%	very high
June Weather	23°C (74°F)	136 mm (5.4 inches)	81%	extreme
July Weather	24°C (76°F)	79 mm (3.1 inches)	79%	very high
August Weather	23°C (73°F)	64 mm (2.5 inches)	77%	very high
September Weather	20°C (68°F)	123 mm (4.8 inches)	78%	very high
October Weather	11°C (53°F)	137 mm (5.4 inches)	78%	high
November Weather	3°C (38°F)	49 mm (1.9 inches)	87%	moderate
December Weather	-1°C (31°F)	43 mm (1.7 inches)	84%	moderate