October Weather in Arlington, United States

Last updated: June 24, 2025

In October, the average temperature in Arlington, United States hovers around 18°C (65°F), with a minimum drop to 0°C (33°F) and a peak reaching 35°C (96°F). Expect about 109 mm (4.3 in) of precipitation over 8 days, paired with an average humidity of 73%. Enjoy the changing weather!

October Temperature in Arlington

In October in Arlington, the average temperature is 18°C (65°F), with maximums reaching 35°C (96°F) and minimums dropping as low as 0°C (33°F). Be prepared for a variety of weather conditions during your travels, ranging from warm days to cooler nights.

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

The chart illustrates October 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, October typically has an average temperature of 18°C (65°F), with highs reaching up to 35°C (96°F) and lows dropping to around 0°C (33°F).

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

October Precipitation in Arlington

In Arlington in October, the total precipitation amount is 109 mm (4.3 in) spread over 8 days.

October Precipitation Trends in Arlington

The chart displays monthly precipitation patterns in Arlington, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Arlington, October typically receives around 109 mm (4.3 inches) of precipitation spread over approximately 8 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

October Humidity in Arlington

In Arlington in October, humidity is 73%. With an average temperature of 18°C (65°F), this humidity feels like a warm, slightly muggy embrace that can make exploring the outdoors a bit sticky, yet still pleasant for leisurely strolls and sightseeing.

October Average Humidity in Arlington

This chart illustrates the average monthly humidity levels in Arlington, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Arlington is approximately 73%, offering insight into how humid the weather typically is during this month.

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

October UV Index in Arlington

In Arlington in October, 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 Arlington.

Maximum UV Index Levels in Arlington for October

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

Data source: Arlington October 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 October 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 October’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 October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	6°C (42°F)	104 mm (4.1 inches)	86%	moderate
February Weather	8°C (46°F)	169 mm (6.7 inches)	85%	high
March Weather	13°C (55°F)	167 mm (6.6 inches)	84%	high
April Weather	16°C (61°F)	137 mm (5.4 inches)	81%	very high
May Weather	22°C (72°F)	114 mm (4.5 inches)	83%	very high
June Weather	26°C (79°F)	115 mm (4.5 inches)	83%	extreme
July Weather	28°C (82°F)	130 mm (5.1 inches)	80%	extreme
August Weather	26°C (80°F)	108 mm (4.2 inches)	73%	very high
September Weather	24°C (76°F)	96 mm (3.8 inches)	70%	very high
October Weather	18°C (65°F)	109 mm (4.3 inches)	73%	high
November Weather	10°C (51°F)	78 mm (3.1 inches)	85%	moderate
December Weather	8°C (47°F)	146 mm (5.8 inches)	88%	moderate