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November Weather in Herndon, United States

Last updated: June 24, 2025

In Herndon, United States, the average temperature for November hovers around 8°C (47°F), with fluctuations ranging from a brisk -5°C (22°F) to a warm 25°C (76°F). Expect approximately 87 mm (3.4 in) of precipitation over 8 days, contributing to a high average humidity of 86%. Dress accordingly to stay comfortable amidst these diverse conditions!

November Temperature in Herndon

In November in Herndon, the average temperature is 8°C (47°F). Maximums can reach 25°C (76°F) and minimums can be as low as -5°C (22°F). Be prepared for a wide range of temperatures during your travels, making it essential to pack for both warm and cool conditions.

November Weather in Herndon: Daily Temperature Highs, Lows, and Averages

The chart illustrates November temperature patterns in Herndon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Herndon, November typically has an average temperature of 8°C (47°F), with highs reaching up to 25°C (76°F) and lows dropping to around -5°C (22°F).
JanFebMarAprMayJunJulAugSepOctNovDec364046566675807771614640
Data source: Temperature data for Herndon 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.

November Precipitation in Herndon

In Herndon in November, the precipitation amount is 87 mm (3.4 in), which occurs over a span of 8 days.

November Precipitation Trends in Herndon

The chart displays monthly precipitation patterns in Herndon, with values for each month alongside November’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how November’s conditions compare to those of other months. In Herndon, November typically receives around 87 mm (3.4 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec5997831001311101261371021058792
Data source: Precipitation data for November generated using information from the Copernicus Climate Change Service.
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November Humidity in Herndon

In Herndon in November, humidity is 86%. With an average temperature of 8°C (47°F), this humidity feels like a chilling damp that penetrates your clothes, making outdoor adventures less enjoyable and encouraging you to seek warmth indoors rather than explore the sights.

November Average Humidity in Herndon

This chart illustrates the average monthly humidity levels in Herndon, with November’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In November, average humidity in Herndon is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%86%84%78%79%70%59%68%80%87%85%
Data source: Humidity data for November generated using information from the Copernicus Climate Change Service.

November UV Index in Herndon

In Herndon in November, 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 Herndon.

Maximum UV Index Levels in Herndon for November

The chart shows the monthly maximum UV Index (UVI) for Herndon in November, 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 November, the maximum UV index in Herndon typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357910101098753
Data source: Herndon November 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 November Weather in Herndon Compares to Other Months

Weather in Herndon varies notably across the year, with each month offering distinct climate conditions. This page compares November’s weather to other months in Herndon, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Herndon, showing how November’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (36°F)59 mm (2.3 inches)86%moderate
February Weather5°C (41°F)97 mm (3.8 inches)86%moderate
March Weather8°C (46°F)83 mm (3.3 inches)86%high
April Weather13°C (56°F)100 mm (3.9 inches)84%very high
May Weather19°C (66°F)131 mm (5.2 inches)78%very high
June Weather24°C (75°F)110 mm (4.3 inches)79%very high
July Weather27°C (80°F)126 mm (5.0 inches)70%very high
August Weather25°C (77°F)137 mm (5.4 inches)59%very high
September Weather22°C (71°F)102 mm (4.0 inches)68%very high
October Weather16°C (62°F)105 mm (4.1 inches)80%high
November Weather8°C (47°F)87 mm (3.4 inches)86%moderate
December Weather4°C (40°F)92 mm (3.6 inches)85%moderate

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