March Weather in Londonderry, United States

Last updated: June 24, 2025

In March, the average temperature in Londonderry, United States hovers around -1°C (31°F), creating a chilly atmosphere. Expect minimum temperatures to plunge to -20°C (-3°F), while the highs can reach a surprisingly warm 20°C (67°F). During this month, precipitation totals approximately 78 mm (3.1 in) across 10 days, contributing to an average humidity of 86%. Stay warm and prepared!

March Temperature in Londonderry

In March in Londonderry, the average temperature is -1°C (31°F). The maximum can reach 20°C (67°F) and the minimum can be as low as -20°C (-3°F). This diverse temperature range makes Londonderry a unique destination for travelers seeking both winter activities and milder weather experiences.

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

The chart illustrates March temperature patterns in Londonderry, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Londonderry, March typically has an average temperature of -1°C (31°F), with highs reaching up to 20°C (67°F) and lows dropping to around -20°C (-3°F).

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

March Precipitation in Londonderry

In Londonderry in March, the precipitation amount is 78 mm (3.1 in) over the course of 10 days.

March Precipitation Trends in Londonderry

The chart displays monthly precipitation patterns in Londonderry, 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 Londonderry, March typically receives around 78 mm (3.1 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 Londonderry

In Londonderry in March humidity is 86%. With an average temperature of -1°C (31°F), this humidity feels like an eerie chill enveloping you, making travel uncomfortable as the damp air bites into your skin and the cold seeps through even the warmest of clothes, creating an atmosphere that is heavy and uninviting.

March Average Humidity in Londonderry

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

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

Maximum UV Index Levels in Londonderry for March

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

Data source: Londonderry 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 Londonderry Compares to Other Months

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

This table compares monthly weather conditions in Londonderry, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (21°F)	78 mm (3.1 inches)	89%	moderate
February Weather	-5°C (24°F)	91 mm (3.6 inches)	88%	moderate
March Weather	-1°C (31°F)	78 mm (3.1 inches)	86%	high
April Weather	6°C (43°F)	131 mm (5.2 inches)	84%	very high
May Weather	13°C (55°F)	103 mm (4.0 inches)	76%	very high
June Weather	18°C (64°F)	114 mm (4.5 inches)	72%	very high
July Weather	21°C (69°F)	163 mm (6.4 inches)	66%	very high
August Weather	20°C (67°F)	120 mm (4.7 inches)	64%	very high
September Weather	16°C (61°F)	95 mm (3.7 inches)	72%	high
October Weather	9°C (49°F)	157 mm (6.2 inches)	81%	high
November Weather	1°C (35°F)	107 mm (4.2 inches)	87%	moderate
December Weather	-4°C (26°F)	105 mm (4.1 inches)	84%	low