September Weather in Franklin, United States

Last updated: June 24, 2025

In Franklin, United States, the average temperature in September hovers around 27°C (81°F), creating a warm and inviting atmosphere. However, temperatures can dip as low as 11°C (51°F) and soar to a sizzling 39°C (103°F). Expect 109 mm (4.3 in) of precipitation spread over 11 days, contributing to an average humidity of 69%. Whether you're looking to bask in the sun or enjoy the refreshing rain, September offers a delightful climate to explore!

September Temperature in Franklin

In September in Franklin, the average temperature is 27°C (81°F). Maximums can reach 39°C (103°F), while minimums can drop to as low as 11°C (51°F). Be sure to pack lightweight clothes for the daytime and a warmer layer for the cooler evenings if you're traveling during this time.

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 27°C (81°F), with highs reaching up to 39°C (103°F) and lows dropping to around 11°C (51°F).

Data source: Temperature data for Franklin generated using information from the Copernicus Climate Change Service.

September Precipitation in Franklin

In Franklin in September, the precipitation amount is 109 mm (4.3 in), occurring over a span of 11 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 109 mm (4.3 inches) of precipitation spread over approximately 11 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

September Humidity in Franklin

In Franklin in September, humidity is 69%. With an average temperature of 27°C (81°F), this humidity feels like a warm blanket wrapped around you, making it essential to stay hydrated and take frequent breaks during your travels.

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 69%, offering insight into how humid the weather typically is during this month.

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.

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.
	Temperature	Precipitation	Humidity	UV
January Weather	11°C (51°F)	74 mm (2.9 inches)	79%	moderate
February Weather	12°C (53°F)	90 mm (3.5 inches)	80%	high
March Weather	17°C (63°F)	82 mm (3.2 inches)	78%	very high
April Weather	20°C (68°F)	143 mm (5.6 inches)	79%	extreme
May Weather	24°C (76°F)	152 mm (6.0 inches)	81%	extreme
June Weather	28°C (82°F)	103 mm (4.1 inches)	77%	extreme
July Weather	30°C (86°F)	67 mm (2.6 inches)	71%	extreme
August Weather	30°C (87°F)	119 mm (4.7 inches)	67%	extreme
September Weather	27°C (81°F)	109 mm (4.3 inches)	69%	very high
October Weather	22°C (71°F)	106 mm (4.2 inches)	73%	very high
November Weather	15°C (60°F)	76 mm (3.0 inches)	82%	high
December Weather	13°C (55°F)	99 mm (3.9 inches)	87%	moderate