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September Weather in Oak Ridge, United States

Last updated: June 24, 2025

In September, the average temperature in Oak Ridge, United States reaches a pleasant 23°C (73°F). However, temperatures can vary significantly, dipping to a cool 6°C (43°F) and peaking at a sweltering 36°C (98°F). During this time, 126 mm (5.0 in) of precipitation is expected over 10 days, with an average humidity of 68% adding to the tropical feel.

September Temperature in Oak Ridge

In September in Oak Ridge, the average temperature is 23°C (73°F). Maximum temperatures can reach 36°C (98°F), while the minimum can drop as low as 6°C (43°F). Be sure to pack accordingly to enjoy the diverse weather during your travels!

September Weather in Oak Ridge: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Oak Ridge, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Oak Ridge, September typically has an average temperature of 23°C (73°F), with highs reaching up to 36°C (98°F) and lows dropping to around 6°C (43°F).
JanFebMarAprMayJunJulAugSepOctNovDec414651606975807773634944
Data source: Temperature data for Oak Ridge 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.

September Precipitation in Oak Ridge

In Oak Ridge in September, the total precipitation amount is 126 mm (5.0 in) spread over a duration of 10 days.

September Precipitation Trends in Oak Ridge

The chart displays monthly precipitation patterns in Oak Ridge, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Oak Ridge, September typically receives around 126 mm (5.0 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec8211584118122998912412611680103
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Oak Ridge

In Oak Ridge in September humidity is 68%. With an average temperature of 23°C (73°F), this humidity feels like a soft blanket wrapping around you, making every step outside feel a bit heavier, but offering a warm embrace that encourages leisurely exploration and a relaxed pace for travel.

September Average Humidity in Oak Ridge

This chart illustrates the average monthly humidity levels in Oak Ridge, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Oak Ridge is approximately 68%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%87%86%84%83%83%79%66%68%78%89%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Oak Ridge

In Oak Ridge in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Oak Ridge.

Maximum UV Index Levels in Oak Ridge for September

The chart shows the monthly maximum UV Index (UVI) for Oak Ridge in September, 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 September, the maximum UV index in Oak Ridge typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec4689101110109853
Data source: Oak Ridge September 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 September Weather in Oak Ridge Compares to Other Months

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

This table compares monthly weather conditions in Oak Ridge, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)82 mm (3.2 inches)87%moderate
February Weather8°C (46°F)114 mm (4.5 inches)87%high
March Weather10°C (51°F)84 mm (3.3 inches)86%very high
April Weather15°C (60°F)118 mm (4.6 inches)84%very high
May Weather20°C (69°F)122 mm (4.8 inches)83%very high
June Weather24°C (75°F)99 mm (3.9 inches)83%extreme
July Weather27°C (80°F)89 mm (3.5 inches)79%very high
August Weather25°C (78°F)124 mm (4.9 inches)66%very high
September Weather23°C (73°F)126 mm (5.0 inches)68%very high
October Weather17°C (63°F)115 mm (4.5 inches)78%very high
November Weather9°C (49°F)80 mm (3.1 inches)89%moderate
December Weather7°C (45°F)103 mm (4.1 inches)86%moderate

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