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September Weather in Mount Juliet, United States

Last updated: June 24, 2025

In Mount Juliet, United States, the average temperature in September hovers around 23°C (74°F), with a minimum of 9°C (48°F) and peaks reaching up to 36°C (98°F). Expect about 124 mm (4.9 in) of precipitation over 9 days, contributing to an average humidity of 71%. Prepare for a month of warm weather with occasional rain!

September Temperature in Mount Juliet

In September in Mount Juliet, the average temperature is 23°C (74°F). The maximum can reach 36°C (98°F), while the minimum can be as low as 9°C (48°F). Be prepared for warm days but bring a light jacket for cooler evenings while traveling.

September Weather in Mount Juliet: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Mount Juliet, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mount Juliet, September typically has an average temperature of 23°C (74°F), with highs reaching up to 36°C (98°F) and lows dropping to around 9°C (48°F).
JanFebMarAprMayJunJulAugSepOctNovDec404552597077807874634845
Data source: Temperature data for Mount Juliet 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 Mount Juliet

In Mount Juliet in September, the precipitation amount is 124 mm (4.9 in) over the course of 9 days.

September Precipitation Trends in Mount Juliet

The chart displays monthly precipitation patterns in Mount Juliet, 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 Mount Juliet, September typically receives around 124 mm (4.9 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec10418316114311714213612412414184150
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Mount Juliet

In Mount Juliet in September, humidity is 71%. With an average temperature of 23°C (74°F), this humidity feels like a warm, enveloping embrace that can make outdoor activities feel sticky, but if you're well-hydrated and take breaks in the shade, it offers a pleasant tropical ambiance perfect for exploration.

September Average Humidity in Mount Juliet

This chart illustrates the average monthly humidity levels in Mount Juliet, 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 Mount Juliet is approximately 71%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%86%86%82%83%83%80%74%71%78%88%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Mount Juliet

In Mount Juliet 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 Mount Juliet.

Maximum UV Index Levels in Mount Juliet for September

The chart shows the monthly maximum UV Index (UVI) for Mount Juliet 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 Mount Juliet typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36710101111109753
Data source: Mount Juliet 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 Mount Juliet Compares to Other Months

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

This table compares monthly weather conditions in Mount Juliet, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)104 mm (4.1 inches)87%moderate
February Weather7°C (45°F)182 mm (7.2 inches)86%high
March Weather11°C (53°F)161 mm (6.3 inches)86%high
April Weather15°C (59°F)143 mm (5.6 inches)82%very high
May Weather21°C (70°F)117 mm (4.6 inches)82%very high
June Weather25°C (77°F)142 mm (5.6 inches)83%extreme
July Weather27°C (80°F)136 mm (5.4 inches)80%extreme
August Weather26°C (78°F)124 mm (4.9 inches)74%very high
September Weather23°C (74°F)124 mm (4.9 inches)71%very high
October Weather17°C (63°F)141 mm (5.6 inches)78%high
November Weather9°C (49°F)84 mm (3.3 inches)88%moderate
December Weather7°C (45°F)150 mm (5.9 inches)88%moderate

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