March Weather in Arlington, United States

Last updated: June 24, 2025

In March, the average temperature in Arlington, United States hovers around 5°C (41°F), with a remarkable range from a chilling -20°C (-4°F) to a warm 26°C (79°F). Expect 92 mm (3.6 in) of precipitation spread over 9 days, contributing to an average humidity of 73%. Whether you're braving the cold or enjoying the warmth, be prepared for the diverse weather conditions!

March Temperature in Arlington

In March in Arlington, the average temperature is 5°C (41°F). Maximum temperatures can reach 26°C (79°F), while minima can drop as low as -20°C (-4°F). Be prepared for a wide range of temperatures if you're planning to travel during this time.

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

The chart illustrates March temperature patterns in Arlington, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Arlington, March typically has an average temperature of 5°C (41°F), with highs reaching up to 26°C (79°F) and lows dropping to around -20°C (-4°F).

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

March Precipitation in Arlington

In Arlington in March, the precipitation amount is 92 mm (3.6 in) during 9 days, indicating a relatively wet period for the region.

March Precipitation Trends in Arlington

The chart displays monthly precipitation patterns in Arlington, 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 Arlington, March typically receives around 92 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 Arlington

In Arlington in March, humidity is 73%. With an average temperature of 5°C (41°F), this humidity makes traveling feel quite chilly and damp, which can be uncomfortable for long periods outdoors.

March Average Humidity in Arlington

This chart illustrates the average monthly humidity levels in Arlington, 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 Arlington is approximately 73%, 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 Arlington

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

Maximum UV Index Levels in Arlington for March

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

Data source: Arlington 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 Arlington Compares to Other Months

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

This table compares monthly weather conditions in Arlington, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (25°F)	32 mm (1.2 inches)	76%	moderate
February Weather	-4°C (25°F)	30 mm (1.2 inches)	80%	moderate
March Weather	5°C (41°F)	92 mm (3.6 inches)	73%	high
April Weather	10°C (50°F)	59 mm (2.3 inches)	74%	very high
May Weather	17°C (63°F)	151 mm (6.0 inches)	78%	very high
June Weather	24°C (76°F)	123 mm (4.8 inches)	82%	very high
July Weather	25°C (78°F)	68 mm (2.7 inches)	83%	very high
August Weather	23°C (74°F)	103 mm (4.1 inches)	80%	very high
September Weather	21°C (69°F)	79 mm (3.1 inches)	75%	very high
October Weather	11°C (53°F)	105 mm (4.1 inches)	75%	high
November Weather	4°C (40°F)	30 mm (1.2 inches)	82%	moderate
December Weather	-1°C (31°F)	41 mm (1.6 inches)	83%	low