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October Weather in Arlington, United States

Last updated: June 24, 2025

In October, the average temperature in Arlington, United States hovers around 11°C (53°F). Expect a wide range, with minimums dipping to -7°C (20°F) and maximums soaring up to 32°C (90°F). Rainfall is notable, with an average of 105 mm (4.1 in) spread over 9 days, while humidity levels sit comfortably at 75%. Prepare for a variety of weather conditions this month!

October Temperature in Arlington

In October in Arlington, the average temperature is 11°C (53°F). Maximum temperatures can reach 32°C (90°F), while minimums can drop as low as -7°C (20°F). Be prepared for a wide range of weather conditions when traveling during this time.

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 11°C (53°F), with highs reaching up to 32°C (90°F) and lows dropping to around -7°C (20°F).
JanFebMarAprMayJunJulAugSepOctNovDec252541506275787469523931
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 total precipitation amount reaches 105 mm (4.1 in) 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 105 mm (4.1 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec3230925915212368103791053041
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 75%. With an average temperature of 11°C (53°F), this humidity feels like a cool, damp embrace that can make exploring the area feel more challenging, as you constantly contend with the moisture in the air while trying to enjoy your travels.

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 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%80%73%75%78%82%83%81%75%75%82%83%
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 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 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 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34689101098642
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-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 Weather5°C (41°F)92 mm (3.6 inches)73%high
April Weather10°C (50°F)59 mm (2.3 inches)74%very high
May Weather17°C (63°F)151 mm (6.0 inches)78%very high
June Weather24°C (76°F)123 mm (4.8 inches)82%very high
July Weather25°C (78°F)68 mm (2.7 inches)83%very high
August Weather23°C (74°F)103 mm (4.1 inches)80%very high
September Weather21°C (69°F)79 mm (3.1 inches)75%very high
October Weather11°C (53°F)105 mm (4.1 inches)75%high
November Weather4°C (40°F)30 mm (1.2 inches)82%moderate
December Weather-1°C (31°F)41 mm (1.6 inches)83%low

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