March Weather in Brookhaven, United States

Last updated: June 24, 2025

In March, the average temperature in Brookhaven, United States hovers around 6°C (44°F). You can expect a drastic range, with minimums plunging to -17°C (2°F) and maximums reaching up to 26°C (79°F). This month also brings along 118 mm (4.7 in) of precipitation spread over 14 days, contributing to an average humidity of 88%. Be prepared for varying weather conditions!

March Temperature in Brookhaven

In March in Brookhaven, the average temperature is 6°C (44°F). The maximum can reach 26°C (79°F), and the minimum can be as low as -17°C (2°F). Be prepared for a wide range of temperatures, from cozy afternoons to chilly nights, when visiting Brookhaven this March.

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

The chart illustrates March temperature patterns in Brookhaven, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Brookhaven, March typically has an average temperature of 6°C (44°F), with highs reaching up to 26°C (79°F) and lows dropping to around -17°C (2°F).

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

March Precipitation in Brookhaven

In Brookhaven in March, the precipitation amount is 118 mm (4.7 in) over a span of 14 days.

March Precipitation Trends in Brookhaven

The chart displays monthly precipitation patterns in Brookhaven, 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 Brookhaven, March typically receives around 118 mm (4.7 inches) of precipitation spread over approximately 14 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 Brookhaven

In Brookhaven in March humidity is 88%. With an average temperature of 6°C (44°F), this humidity feels like a damp chill that seeps into your bones, making outdoor adventures less inviting and requiring warm, layered clothing to stay comfortable while exploring.

March Average Humidity in Brookhaven

This chart illustrates the average monthly humidity levels in Brookhaven, 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 Brookhaven is approximately 88%, 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 Brookhaven

In Brookhaven in March, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Brookhaven.

Maximum UV Index Levels in Brookhaven for March

The chart shows the monthly maximum UV Index (UVI) for Brookhaven 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 Brookhaven typically reaches 7, which falls under the high exposure category.

Data source: Brookhaven 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 Brookhaven Compares to Other Months

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

This table compares monthly weather conditions in Brookhaven, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	0°C (33°F)	93 mm (3.7 inches)	88%	moderate
February Weather	3°C (38°F)	150 mm (5.9 inches)	88%	moderate
March Weather	6°C (44°F)	118 mm (4.7 inches)	88%	high
April Weather	11°C (53°F)	145 mm (5.7 inches)	86%	very high
May Weather	17°C (63°F)	156 mm (6.1 inches)	82%	very high
June Weather	21°C (70°F)	161 mm (6.3 inches)	84%	very high
July Weather	23°C (74°F)	130 mm (5.1 inches)	82%	very high
August Weather	22°C (72°F)	117 mm (4.6 inches)	73%	very high
September Weather	20°C (68°F)	114 mm (4.5 inches)	73%	very high
October Weather	14°C (58°F)	117 mm (4.6 inches)	81%	high
November Weather	6°C (43°F)	90 mm (3.5 inches)	89%	moderate
December Weather	3°C (38°F)	130 mm (5.1 inches)	86%	moderate