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September Weather in Shelbyville, United States

Last updated: June 24, 2025

In Shelbyville, United States, the average temperature in September hovers around 22°C (71°F). Expect a range from a brisk 6°C (43°F) to a warm 34°C (93°F). During this month, you can anticipate about 67 mm (2.6 in) of precipitation spread over 6 days, with humidity typically reaching an average of 79%. Get ready for a month of diverse weather!

September Temperature in Shelbyville

In September in Shelbyville, the average temperature is 22°C (71°F). Maximum temperatures can reach 34°C (93°F), while minimums can drop as low as 6°C (43°F). This makes it a great time to explore Shelbyville with a diverse range of weather conditions to suit different activities.

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

The chart illustrates September temperature patterns in Shelbyville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Shelbyville, September typically has an average temperature of 22°C (71°F), with highs reaching up to 34°C (93°F) and lows dropping to around 6°C (43°F).
JanFebMarAprMayJunJulAugSepOctNovDec303344536675787471584237
Data source: Temperature data for Shelbyville 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 Shelbyville

In Shelbyville in September, the precipitation amount is 67 mm (2.6 in) over the course of 6 days.

September Precipitation Trends in Shelbyville

The chart displays monthly precipitation patterns in Shelbyville, 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 Shelbyville, September typically receives around 67 mm (2.6 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec7978129132142106115123671228661
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Shelbyville

In Shelbyville in September humidity is 79%. With an average temperature of 22°C (71°F), this humidity feels like a warm, sticky embrace that can make any outdoor adventure quite challenging for traveling; it's advisable to stay hydrated and take breaks in the shade to fully enjoy the sights.

September Average Humidity in Shelbyville

This chart illustrates the average monthly humidity levels in Shelbyville, 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 Shelbyville is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%84%83%80%83%82%83%79%79%88%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Shelbyville

In Shelbyville in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Shelbyville.

Maximum UV Index Levels in Shelbyville for September

The chart shows the monthly maximum UV Index (UVI) for Shelbyville 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 Shelbyville typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910111098643
Data source: Shelbyville 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 Shelbyville Compares to Other Months

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

This table compares monthly weather conditions in Shelbyville, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)79 mm (3.1 inches)84%moderate
February Weather0°C (33°F)78 mm (3.1 inches)82%moderate
March Weather7°C (44°F)129 mm (5.1 inches)84%high
April Weather12°C (53°F)132 mm (5.2 inches)83%very high
May Weather19°C (66°F)142 mm (5.6 inches)80%very high
June Weather24°C (76°F)106 mm (4.2 inches)83%extreme
July Weather25°C (78°F)115 mm (4.5 inches)82%very high
August Weather24°C (75°F)123 mm (4.8 inches)82%very high
September Weather22°C (71°F)67 mm (2.6 inches)79%very high
October Weather14°C (58°F)122 mm (4.8 inches)79%high
November Weather6°C (42°F)85 mm (3.4 inches)88%moderate
December Weather3°C (37°F)60 mm (2.4 inches)87%moderate

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