March Weather in Greenport, United States

Last updated: June 24, 2025

In March, the average temperature in Greenport, United States hovers around 4°C (39°F). During this time, temperatures can dip as low as -7°C (20°F) or soar to a comfortable 15°C (59°F). Expect about 113 mm (4.5 in) of precipitation spread over 10 days, and with an average humidity of 82%, it's a month where you might want to keep your umbrella handy and dress in layers!

March Temperature in Greenport

In March in Greenport, the average temperature is 4°C (39°F). Maximum temperatures can reach 15°C (59°F), while the minimum can drop as low as -7°C (20°F). Be prepared for chilly weather and pack accordingly if you plan to travel during this time.

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

The chart illustrates March temperature patterns in Greenport, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Greenport, March typically has an average temperature of 4°C (39°F), with highs reaching up to 15°C (59°F) and lows dropping to around -7°C (20°F).

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

March Precipitation in Greenport

In Greenport in March, the total precipitation amount is 113 mm (4.5 in) over the course of 10 days.

March Precipitation Trends in Greenport

The chart displays monthly precipitation patterns in Greenport, 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 Greenport, March typically receives around 113 mm (4.5 inches) of precipitation spread over approximately 10 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 Greenport

In Greenport in March, humidity is 82%. With an average temperature of 4°C (39°F), this humidity feels like a chill that seeps into your bones, making it uncomfortable for traveling as you find yourself bundled up, yet still damp and cold.

March Average Humidity in Greenport

This chart illustrates the average monthly humidity levels in Greenport, 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 Greenport 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 Greenport

In Greenport 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 Greenport, you can refer to this Hourly UV Index in Greenport.

Maximum UV Index Levels in Greenport for March

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

Data source: Greenport 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 Greenport Compares to Other Months

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

This table compares monthly weather conditions in Greenport, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (37°F)	89 mm (3.5 inches)	84%	moderate
February Weather	3°C (37°F)	123 mm (4.8 inches)	84%	moderate
March Weather	4°C (39°F)	113 mm (4.5 inches)	82%	high
April Weather	8°C (47°F)	137 mm (5.4 inches)	79%	very high
May Weather	12°C (54°F)	129 mm (5.1 inches)	75%	very high
June Weather	18°C (64°F)	72 mm (2.9 inches)	78%	very high
July Weather	22°C (72°F)	99 mm (3.9 inches)	76%	very high
August Weather	23°C (73°F)	103 mm (4.0 inches)	76%	very high
September Weather	20°C (69°F)	99 mm (3.9 inches)	75%	very high
October Weather	16°C (61°F)	160 mm (6.3 inches)	75%	high
November Weather	10°C (50°F)	113 mm (4.4 inches)	80%	moderate
December Weather	5°C (42°F)	147 mm (5.8 inches)	80%	low