May Weather in Arlington, United States

Last updated: June 24, 2025

In Arlington, United States, the average temperature in May rests comfortably at 17°C (63°F). Expect some variability, with minimum temperatures dipping to 2°C (36°F) and maximums soaring to 36°C (98°F). During this time, anticipate approximately 151 mm (6.0 in) of precipitation spread over 15 days, accompanied by an average humidity level of 78%.

May Temperature in Arlington

In May in Arlington, the average temperature is 17°C (63°F), with maximums reaching 36°C (98°F) and minimums dropping as low as 2°C (36°F). Be prepared for a wide temperature range and pack accordingly to ensure a comfortable trip!

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

The chart illustrates May 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, May typically has an average temperature of 17°C (63°F), with highs reaching up to 36°C (98°F) and lows dropping to around 2°C (36°F).

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

May Precipitation in Arlington

In Arlington in May, the precipitation amount is 151 mm (6.0 in) spread over 15 days.

May Precipitation Trends in Arlington

The chart displays monthly precipitation patterns in Arlington, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Arlington, May typically receives around 151 mm (6.0 inches) of precipitation spread over approximately 15 days.

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

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Millimeters (mm) Inches (in)

May Humidity in Arlington

In Arlington in May, humidity is 78%. With an average temperature of 17°C (63°F), this humidity feels like a warm, enveloping blanket, making traveling slightly uncomfortable as you navigate the sticky air, prompting the need for frequent breaks in cooler, shaded areas.

May Average Humidity in Arlington

This chart illustrates the average monthly humidity levels in Arlington, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Arlington is approximately 78%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Arlington

In Arlington in May, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Arlington.

Maximum UV Index Levels in Arlington for May

The chart shows the monthly maximum UV Index (UVI) for Arlington in May, 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 May, the maximum UV index in Arlington typically reaches 9, which falls under the very high exposure category.

Data source: Arlington May 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 May 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 May’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 May’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