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October Weather in Arlington, United States

Last updated: June 24, 2025

The average temperature in Arlington, United States during October is a cool 8°C (47°F). While temperatures can drop to a brisk -13°C (10°F), they can also soar to a warm 28°C (83°F). On top of that, expect about 75 mm (2.9 in) of precipitation over 9 days, all while grappling with an average humidity of 82%.

October Temperature in Arlington

In October in Arlington, the average temperature is 8°C (47°F). Maximum temperatures can reach 28°C (83°F), while the minimum can drop as low as -13°C (10°F). Travelers should be prepared for a wide range of weather conditions during their visit.

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 8°C (47°F), with highs reaching up to 28°C (83°F) and lows dropping to around -13°C (10°F).
JanFebMarAprMayJunJulAugSepOctNovDec171632425771747064473425
Data source: Temperature data for Arlington generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

October Precipitation in Arlington

In Arlington, in October, the precipitation amount is 75 mm (2.9 in) spread over the course of 9 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 75 mm (2.9 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec20205975947410210698752532
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Arlington

In Arlington in October humidity is 82%. With an average temperature of 8°C (47°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration less enjoyable and requiring extra layers to stay warm and comfortable.

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 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%89%81%82%76%81%82%83%82%82%87%84%
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 reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, 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 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35589101098532
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.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (17°F)20 mm (0.8 inches)85%moderate
February Weather-9°C (17°F)20 mm (0.8 inches)89%moderate
March Weather0°C (33°F)59 mm (2.3 inches)81%moderate
April Weather6°C (42°F)75 mm (2.9 inches)82%very high
May Weather14°C (57°F)93 mm (3.7 inches)76%very high
June Weather22°C (71°F)74 mm (2.9 inches)81%very high
July Weather23°C (74°F)102 mm (4.0 inches)82%very high
August Weather21°C (71°F)106 mm (4.2 inches)83%very high
September Weather18°C (64°F)98 mm (3.8 inches)82%very high
October Weather8°C (47°F)75 mm (2.9 inches)82%moderate
November Weather1°C (34°F)25 mm (1.0 inches)87%moderate
December Weather-4°C (25°F)32 mm (1.3 inches)84%low

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