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September Weather in Lenoir City, United States

Last updated: June 24, 2025

In September, the average temperature in Lenoir City, United States hovers around 23°C (74°F), offering a pleasant climate. Temperatures can vary significantly, with a minimum of 10°C (50°F) and a maximum reaching up to 36°C (96°F). Expect about 97 mm (3.8 in) of precipitation spread over 9 days, accompanied by an average humidity level of 76%.

September Temperature in Lenoir City

In September in Lenoir City, the average temperature is 23°C (74°F). Maximums can reach 36°C (96°F), while minimums can drop as low as 10°C (50°F). It's a great time to explore Lenoir City, so pack accordingly for both warm days and cooler evenings!

September Weather in Lenoir City: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Lenoir City, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lenoir City, September typically has an average temperature of 23°C (74°F), with highs reaching up to 36°C (96°F) and lows dropping to around 10°C (50°F).
JanFebMarAprMayJunJulAugSepOctNovDec424753606975797773645046
Data source: Temperature data for Lenoir City 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 Lenoir City

In Lenoir City in September, the total precipitation amount reaches 97 mm (3.8 in) over the course of 9 days.

September Precipitation Trends in Lenoir City

The chart displays monthly precipitation patterns in Lenoir City, 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 Lenoir City, September typically receives around 97 mm (3.8 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec1051791661391171111161289712284142
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Lenoir City

In Lenoir City in September humidity is 76%. With an average temperature of 23°C (74°F), this humidity feels like a warm, thick blanket wrapping around you, making outdoor exploration feel a bit sluggish and requiring frequent breaks for hydration and respite from the heat.

September Average Humidity in Lenoir City

This chart illustrates the average monthly humidity levels in Lenoir City, 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 Lenoir City is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%86%82%85%85%83%76%76%80%88%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Lenoir City

In Lenoir City 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 Lenoir City.

Maximum UV Index Levels in Lenoir City for September

The chart shows the monthly maximum UV Index (UVI) for Lenoir City 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 Lenoir City typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36810111111109753
Data source: Lenoir City 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 Lenoir City Compares to Other Months

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

This table compares monthly weather conditions in Lenoir City, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (42°F)105 mm (4.1 inches)86%moderate
February Weather8°C (47°F)179 mm (7.1 inches)86%high
March Weather12°C (53°F)166 mm (6.5 inches)86%very high
April Weather15°C (60°F)139 mm (5.5 inches)82%very high
May Weather21°C (70°F)117 mm (4.6 inches)85%extreme
June Weather24°C (75°F)111 mm (4.4 inches)85%extreme
July Weather26°C (79°F)116 mm (4.6 inches)83%extreme
August Weather25°C (78°F)128 mm (5.0 inches)76%very high
September Weather23°C (74°F)97 mm (3.8 inches)76%very high
October Weather18°C (64°F)122 mm (4.8 inches)80%high
November Weather10°C (50°F)84 mm (3.3 inches)88%moderate
December Weather8°C (46°F)142 mm (5.6 inches)88%moderate

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