March Weather in Williamstown, United States

Last updated: June 24, 2025

In March, the average temperature in Williamstown, United States hovers around -2°C (29°F), but it can swing dramatically with a minimum of -23°C (-9°F) and a maximum reaching up to 19°C (67°F). Expect 71 mm (2.8 in) of precipitation spread over 11 days, contributing to an average humidity of 86%. Prepare for a chilly and damp month!

March Temperature in Williamstown

In March in Williamstown, the average temperature is -2°C (29°F), with maximums reaching up to 19°C (67°F) and minimums plummeting as low as -23°C (-9°F). This range makes it essential for travelers to prepare for both cold and relatively mild weather conditions while visiting.

March Weather in Williamstown: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in Williamstown, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Williamstown, March typically has an average temperature of -2°C (29°F), with highs reaching up to 19°C (67°F) and lows dropping to around -23°C (-9°F).

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

March Precipitation in Williamstown

In Williamstown in March, the precipitation amount is 71 mm (2.8 in) distributed over 11 days.

March Precipitation Trends in Williamstown

The chart displays monthly precipitation patterns in Williamstown, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In Williamstown, March typically receives around 71 mm (2.8 inches) of precipitation spread over approximately 11 days.

Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

March Humidity in Williamstown

In Williamstown in March humidity is 86%. With an average temperature of -2°C (29°F), this humidity feels like a damp chill that seeps through layers of clothing, making outdoor activities uncomfortable and travel plans challenging.

March Average Humidity in Williamstown

This chart illustrates the average monthly humidity levels in Williamstown, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in Williamstown is approximately 86%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Williamstown

In Williamstown in March, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Williamstown.

Maximum UV Index Levels in Williamstown for March

The chart shows the monthly maximum UV Index (UVI) for Williamstown in March, 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 March, the maximum UV index in Williamstown typically reaches 5, which falls under the moderate exposure category.

Data source: Williamstown March 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 March Weather in Williamstown Compares to Other Months

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

This table compares monthly weather conditions in Williamstown, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-7°C (19°F)	77 mm (3.0 inches)	89%	low
February Weather	-6°C (22°F)	80 mm (3.2 inches)	88%	moderate
March Weather	-2°C (29°F)	71 mm (2.8 inches)	86%	moderate
April Weather	5°C (42°F)	117 mm (4.6 inches)	84%	very high
May Weather	12°C (55°F)	96 mm (3.8 inches)	76%	very high
June Weather	17°C (64°F)	97 mm (3.8 inches)	72%	very high
July Weather	20°C (69°F)	140 mm (5.5 inches)	66%	very high
August Weather	19°C (67°F)	98 mm (3.9 inches)	64%	very high
September Weather	15°C (60°F)	71 mm (2.8 inches)	72%	high
October Weather	9°C (48°F)	141 mm (5.6 inches)	81%	moderate
November Weather	1°C (33°F)	104 mm (4.1 inches)	87%	moderate
December Weather	-5°C (24°F)	88 mm (3.4 inches)	84%	low