September Weather in Franklin, United States

Last updated: June 24, 2025

In September, the average temperature in Franklin, United States hovers around 23°C (73°F), with a comfortable average humidity of 71%. Expect temperature fluctuations, ranging from a cool 8°C (46°F) to a scorching 36°C (97°F). Keep your umbrella handy, as the area receives about 132 mm (5.2 in) of precipitation over 8 days.

September Temperature in Franklin

In September in Franklin, the average temperature is 23°C (73°F), with maximums reaching up to 36°C (97°F) and minimums dropping as low as 8°C (46°F). This is an ideal time for travelers to enjoy a variety of outdoor activities while being prepared for fluctuating temperatures.

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 23°C (73°F), with highs reaching up to 36°C (97°F) and lows dropping to around 8°C (46°F).
JanFebMarAprMayJunJulAugSepOctNovDec394351587076807773624744
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 total precipitation amount is 132 mm (5.2 in), which occurs over the span of 8 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 132 mm (5.2 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec9918115115912415412513613213688141
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 71%. With an average temperature of 23°C (73°F), this humidity feels like a warm, sticky embrace, making outdoor exploration slightly uncomfortable but still manageable if you stay hydrated and plan for breaks in shaded areas.

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 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 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.
JanFebMarAprMayJunJulAugSepOctNovDec36710101111109753
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 Weather4°C (39°F)99 mm (3.9 inches)87%moderate
February Weather6°C (44°F)181 mm (7.1 inches)86%high
March Weather11°C (52°F)151 mm (5.9 inches)86%high
April Weather15°C (58°F)159 mm (6.3 inches)82%very high
May Weather21°C (70°F)124 mm (4.9 inches)82%very high
June Weather25°C (76°F)153 mm (6.0 inches)83%extreme
July Weather27°C (80°F)125 mm (4.9 inches)80%extreme
August Weather25°C (78°F)136 mm (5.3 inches)74%very high
September Weather23°C (73°F)132 mm (5.2 inches)71%very high
October Weather17°C (63°F)136 mm (5.4 inches)78%high
November Weather8°C (48°F)88 mm (3.5 inches)88%moderate
December Weather7°C (44°F)141 mm (5.6 inches)88%moderate

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