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September Weather in Franklin, United States

Last updated: June 24, 2025

In September, the average temperature in Franklin, United States hovers around 19°C (66°F), offering a pleasant climate for exploration. Expect minimums of 4°C (39°F) and highs reaching up to 30°C (86°F). While enjoying the weather, be prepared for 121 mm (4.8 in) of precipitation spread over approximately 12 days, contributing to an average humidity of 76%.

September Temperature in Franklin

In September in Franklin, the average temperature is 19°C (66°F). Maximums can reach 30°C (86°F), and minimums can be as low as 4°C (39°F). This weather makes Franklin an ideal destination for travelers seeking a pleasant climate and comfortable outdoor activities.

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 19°C (66°F), with highs reaching up to 30°C (86°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec374347546267717066584541
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 reaches 121 mm (4.8 in) over the course of 12 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 121 mm (4.8 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec122207161147135110119136122152101159
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 19°C (66°F), this humidity feels like a warm, thick blanket wrapping around you, making travel mildly uncomfortable and encouraging frequent breaks in shaded or air-conditioned 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 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 Franklin

In Franklin in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more 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 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec478111211111110864
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 Weather3°C (37°F)122 mm (4.8 inches)86%moderate
February Weather6°C (43°F)207 mm (8.1 inches)86%high
March Weather8°C (47°F)161 mm (6.3 inches)86%very high
April Weather12°C (54°F)147 mm (5.8 inches)82%extreme
May Weather17°C (62°F)135 mm (5.3 inches)85%extreme
June Weather20°C (67°F)110 mm (4.3 inches)85%extreme
July Weather21°C (71°F)119 mm (4.7 inches)83%extreme
August Weather21°C (70°F)136 mm (5.3 inches)76%extreme
September Weather19°C (66°F)121 mm (4.8 inches)76%very high
October Weather14°C (58°F)152 mm (6.0 inches)80%very high
November Weather7°C (45°F)101 mm (4.0 inches)88%high
December Weather5°C (41°F)159 mm (6.3 inches)88%moderate

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