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October Weather in Arlington, United States

Last updated: June 24, 2025

In Arlington, United States, the average temperature in October hovers around 22°C (72°F), making it a pleasant time to visit. However, be prepared for temperature fluctuations, as it can dip to a chilly 3°C (38°F) at night or rise to a warm 35°C (96°F) during the day. Expect about 98 mm (3.9 in) of precipitation spread across 8 days, with an average humidity level of 77%. Enjoy the diverse climate while exploring!

October Temperature in Arlington

In October in Arlington, the average temperature is 22°C (72°F). Maximums can reach 35°C (96°F), while minimums can be as low as 3°C (38°F). Visitors should be prepared for a wide range of temperatures, making it essential to pack accordingly for both warm days and 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 22°C (72°F), with highs reaching up to 35°C (96°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec515762677580828279725854
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 is 98 mm (3.9 in), occurring 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 98 mm (3.9 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec8811485113891031191231159849125
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 77%. With average temperature 22°C (72°F), this humidity feels like walking through a warm, damp embrace, making outdoor activities both refreshing and slightly uncomfortable for travelers unaccustomed to such conditions.

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 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%82%80%76%73%74%80%79%83%77%84%88%
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 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to 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 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec589101111111110864
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 Weather11°C (52°F)88 mm (3.5 inches)85%moderate
February Weather14°C (58°F)114 mm (4.5 inches)82%very high
March Weather17°C (62°F)85 mm (3.3 inches)80%very high
April Weather19°C (67°F)113 mm (4.4 inches)76%very high
May Weather24°C (75°F)89 mm (3.5 inches)73%extreme
June Weather26°C (80°F)103 mm (4.0 inches)74%extreme
July Weather28°C (82°F)119 mm (4.7 inches)80%extreme
August Weather28°C (82°F)123 mm (4.8 inches)79%extreme
September Weather26°C (79°F)115 mm (4.5 inches)83%very high
October Weather22°C (72°F)98 mm (3.9 inches)77%very high
November Weather15°C (59°F)49 mm (1.9 inches)84%high
December Weather12°C (54°F)125 mm (4.9 inches)88%moderate

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