March Weather in Marlborough, United States

Last updated: June 24, 2025

In March, the average temperature in Marlborough, United States hovers around 3°C (38°F). Expect chilly nights as the minimum can plummet to -15°C (5°F), while daytime temperatures might reach a pleasant 23°C (73°F). Be prepared for 91 mm (3.6 in) of precipitation spread across approximately 9 days, with an average humidity level of 82% keeping the air moist.

March Temperature in Marlborough

In March in Marlborough, the average temperature is 3°C (38°F). Maximum temperatures can reach 23°C (73°F) and minimums can drop as low as -15°C (5°F). Be prepared for quite a range of temperatures when traveling during this time.

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

The chart illustrates March temperature patterns in Marlborough, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Marlborough, March typically has an average temperature of 3°C (38°F), with highs reaching up to 23°C (73°F) and lows dropping to around -15°C (5°F).

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

March Precipitation in Marlborough

In Marlborough in March, the precipitation amount is 91 mm (3.6 in) spread over 9 days.

March Precipitation Trends in Marlborough

The chart displays monthly precipitation patterns in Marlborough, 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 Marlborough, March typically receives around 91 mm (3.6 inches) of precipitation spread over approximately 9 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

March Humidity in Marlborough

In Marlborough in March humidity is 82%. With an average temperature of 3°C (38°F), this humidity feels like a chilly blanket wrapped around you, making outdoor adventures quite uncomfortable and requiring extra layers to stay warm while exploring.

March Average Humidity in Marlborough

This chart illustrates the average monthly humidity levels in Marlborough, 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 Marlborough is approximately 82%, 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 Marlborough

In Marlborough in March, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Marlborough, you can refer to this Hourly UV Index in Marlborough.

Maximum UV Index Levels in Marlborough for March

The chart shows the monthly maximum UV Index (UVI) for Marlborough 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 Marlborough typically reaches 6, which falls under the high exposure category.

Data source: Marlborough 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 Marlborough Compares to Other Months

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

This table compares monthly weather conditions in Marlborough, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-1°C (31°F)	67 mm (2.6 inches)	86%	moderate
February Weather	0°C (33°F)	85 mm (3.3 inches)	84%	moderate
March Weather	3°C (38°F)	91 mm (3.6 inches)	82%	high
April Weather	9°C (49°F)	124 mm (4.9 inches)	80%	very high
May Weather	15°C (59°F)	92 mm (3.6 inches)	72%	very high
June Weather	20°C (69°F)	87 mm (3.4 inches)	72%	very high
July Weather	23°C (74°F)	131 mm (5.1 inches)	67%	very high
August Weather	23°C (74°F)	89 mm (3.5 inches)	66%	very high
September Weather	19°C (66°F)	83 mm (3.3 inches)	71%	high
October Weather	13°C (56°F)	139 mm (5.5 inches)	78%	high
November Weather	6°C (43°F)	96 mm (3.8 inches)	84%	moderate
December Weather	1°C (34°F)	118 mm (4.6 inches)	81%	low