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November Weather in Stony Brook, United States

Last updated: June 24, 2025

In November, the average temperature in Stony Brook, United States hovers around 8°C (47°F). Expect a chilly minimum of -8°C (17°F), while the maximum can reach a comfortable 23°C (74°F). Be prepared for some rain, as the area receives approximately 94 mm (3.7 in) of precipitation over 9 days. With an average humidity of 82%, layering up is a smart choice to stay cozy during your visit!

November Temperature in Stony Brook

In November in Stony Brook, the average temperature is 8°C (47°F), with maximums reaching 23°C (74°F) and minimums dipping as low as -8°C (17°F). This varied climate makes it essential for travelers to pack layers to comfortably enjoy both the warmer days and cooler nights.

November Weather in Stony Brook: Daily Temperature Highs, Lows, and Averages

The chart illustrates November temperature patterns in Stony Brook, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Stony Brook, November typically has an average temperature of 8°C (47°F), with highs reaching up to 23°C (74°F) and lows dropping to around -8°C (17°F).
JanFebMarAprMayJunJulAugSepOctNovDec343641505970777569604739
Data source: Temperature data for Stony Brook 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 Stony Brook

In Stony Brook in November, the precipitation amount reaches 94 mm (3.7 in) over the course of 9 days.

November Precipitation Trends in Stony Brook

The chart displays monthly precipitation patterns in Stony Brook, 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 Stony Brook, November typically receives around 94 mm (3.7 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec709995119110901321089212994119
Data source: Precipitation data for November generated using information from the Copernicus Climate Change Service.
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November Humidity in Stony Brook

In Stony Brook in November 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.

November Average Humidity in Stony Brook

This chart illustrates the average monthly humidity levels in Stony Brook, 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 Stony Brook is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%81%78%70%69%62%65%68%74%82%80%
Data source: Humidity data for November generated using information from the Copernicus Climate Change Service.

November UV Index in Stony Brook

In Stony Brook in November, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Stony Brook for better planning.

Maximum UV Index Levels in Stony Brook for November

The chart shows the monthly maximum UV Index (UVI) for Stony Brook 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 Stony Brook typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35681010998642
Data source: Stony Brook 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 Stony Brook Compares to Other Months

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

This table compares monthly weather conditions in Stony Brook, showing how November’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)70 mm (2.8 inches)84%moderate
February Weather2°C (36°F)99 mm (3.9 inches)82%moderate
March Weather5°C (41°F)95 mm (3.8 inches)81%high
April Weather10°C (50°F)118 mm (4.7 inches)78%very high
May Weather15°C (60°F)110 mm (4.3 inches)69%very high
June Weather21°C (70°F)90 mm (3.5 inches)69%very high
July Weather25°C (77°F)132 mm (5.2 inches)62%very high
August Weather24°C (75°F)108 mm (4.3 inches)65%very high
September Weather21°C (69°F)92 mm (3.6 inches)68%very high
October Weather15°C (60°F)129 mm (5.1 inches)74%high
November Weather8°C (47°F)94 mm (3.7 inches)82%moderate
December Weather4°C (39°F)119 mm (4.7 inches)80%low

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