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September Weather in Franklin, United States

Last updated: June 24, 2025

In September, the average temperature in Franklin, United States is a comfortable 21°C (71°F). However, temperatures can range from a brisk 6°C (43°F) to a warm 34°C (94°F). Expect some rain with an average precipitation of 70 mm (2.8 in) over 6 days, and be prepared for a rather humid atmosphere with an average humidity of 76%.

September Temperature in Franklin

In September in Franklin, the average temperature is 21°C (71°F), with maximums reaching 34°C (94°F) and minimums dropping as low as 6°C (43°F). This diverse temperature range makes it a great destination for travelers seeking both warm days and cooler evenings.

September Weather in Franklin: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Franklin, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Franklin, September typically has an average temperature of 21°C (71°F), with highs reaching up to 34°C (94°F) and lows dropping to around 6°C (43°F).
JanFebMarAprMayJunJulAugSepOctNovDec303244536675787471574237
Data source: Temperature data for Franklin 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 Franklin

In Franklin in September, the precipitation amount is 70 mm (2.8 in) over the course of 6 days.

September Precipitation Trends in Franklin

The chart displays monthly precipitation patterns in Franklin, 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 Franklin, September typically receives around 70 mm (2.8 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec6771140132148122104106701046849
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Franklin

In Franklin in September humidity is 76%. With an average temperature of 21°C (71°F), this humidity feels like a warm, enveloping blanket, making traveling both refreshing and a bit exhausting, as the air clings to your skin and you often find yourself reaching for water to stay hydrated.

September Average Humidity in Franklin

This chart illustrates the average monthly humidity levels in Franklin, 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 Franklin is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%80%80%80%82%83%81%80%76%76%85%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Franklin

In Franklin 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 Franklin.

Maximum UV Index Levels in Franklin for September

The chart shows the monthly maximum UV Index (UVI) for Franklin 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 Franklin typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec367910111199643
Data source: Franklin 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 Franklin Compares to Other Months

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

This table compares monthly weather conditions in Franklin, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)67 mm (2.6 inches)82%moderate
February Weather0°C (33°F)71 mm (2.8 inches)80%high
March Weather7°C (44°F)140 mm (5.5 inches)80%high
April Weather12°C (53°F)132 mm (5.2 inches)80%very high
May Weather19°C (66°F)148 mm (5.8 inches)82%very high
June Weather24°C (75°F)122 mm (4.8 inches)83%extreme
July Weather25°C (78°F)103 mm (4.1 inches)81%extreme
August Weather24°C (75°F)106 mm (4.2 inches)80%very high
September Weather21°C (71°F)70 mm (2.8 inches)76%very high
October Weather14°C (58°F)104 mm (4.1 inches)76%high
November Weather6°C (42°F)68 mm (2.7 inches)85%moderate
December Weather3°C (37°F)49 mm (1.9 inches)86%moderate

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