January Weather in Williamsburg, United States

Last updated: June 24, 2025

In January, the average temperature in Williamsburg, United States hovers around -4°C (25°F), with extremes ranging from a chilly -23°C (-8°F) to a mild 15°C (59°F). During this time, you can expect 17 mm (0.7 in) of precipitation over 4 days, contributing to an average humidity level of 88%. Prepare accordingly for the cold!

January Temperature in Williamsburg

In January in Williamsburg, the average temperature is -4°C (25°F), with maximums reaching 15°C (59°F) and minimums dropping to as low as -23°C (-8°F). Travelers should be prepared for a wide range of temperatures and dress accordingly for both chilly and milder conditions.

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 -4°C (25°F), with highs reaching up to 15°C (59°F) and lows dropping to around -23°C (-8°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 precipitation amount is 17 mm (0.7 in) over a span of 4 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 17 mm (0.7 inches) of precipitation spread over approximately 4 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 88%. With an average temperature of -4°C (25°F), this humidity feels like a biting chill that clings to your skin, making outdoor excursions brisk and invigorating, yet challenging as you navigate the frosty air.

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 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 Williamsburg

In Williamsburg in January, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Williamsburg for better planning.

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 4, 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	-4°C (25°F)	17 mm (0.7 inches)	88%	moderate
February Weather	-4°C (25°F)	23 mm (0.9 inches)	87%	high
March Weather	2°C (35°F)	37 mm (1.5 inches)	81%	very high
April Weather	6°C (43°F)	42 mm (1.7 inches)	76%	extreme
May Weather	11°C (52°F)	74 mm (2.9 inches)	66%	extreme
June Weather	18°C (64°F)	44 mm (1.7 inches)	58%	extreme
July Weather	20°C (68°F)	79 mm (3.1 inches)	52%	extreme
August Weather	19°C (66°F)	61 mm (2.4 inches)	56%	extreme
September Weather	16°C (61°F)	39 mm (1.5 inches)	65%	very high
October Weather	7°C (46°F)	28 mm (1.1 inches)	76%	high
November Weather	2°C (36°F)	17 mm (0.7 inches)	82%	moderate
December Weather	-2°C (28°F)	13 mm (0.5 inches)	89%	moderate