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September Weather in Shelby, United States

Last updated: June 24, 2025

In September, the average temperature in Shelby, United States hovers around 20°C (68°F). You'll experience a comfortable range, with minimums dipping to 5°C (41°F) and maximums soaring up to 33°C (92°F). Expect 77 mm (3.0 in) of precipitation over about 9 days, contributing to a moderately high humidity level of 78%.

September Temperature in Shelby

In September in Shelby, the average temperature is 20°C (68°F), with maximums reaching 33°C (92°F) and minimums dropping as low as 5°C (41°F). This climate makes Shelby an ideal destination for travelers seeking a pleasant mix of warm days and cool nights.

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

The chart illustrates September temperature patterns in Shelby, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Shelby, September typically has an average temperature of 20°C (68°F), with highs reaching up to 33°C (92°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec293240506270747267574134
Data source: Temperature data for Shelby 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 Shelby

In Shelby in September, the precipitation amount is 77 mm (3.0 in) over the course of 9 days.

September Precipitation Trends in Shelby

The chart displays monthly precipitation patterns in Shelby, 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 Shelby, September typically receives around 77 mm (3.0 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec7793961171271331268377959081
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Shelby

In Shelby in September humidity is 78%. With an average temperature of 20°C (68°F), this humidity feels like a warm, enveloping blanket that makes exploring the sights a bit sticky, so travelers should stay hydrated and take frequent breaks in the shade.

September Average Humidity in Shelby

This chart illustrates the average monthly humidity levels in Shelby, 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 Shelby is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%87%88%81%82%81%78%78%82%89%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Shelby

In Shelby 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 Shelby.

Maximum UV Index Levels in Shelby for September

The chart shows the monthly maximum UV Index (UVI) for Shelby 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 Shelby typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098642
Data source: Shelby 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 Shelby Compares to Other Months

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

This table compares monthly weather conditions in Shelby, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)77 mm (3.0 inches)88%moderate
February Weather0°C (32°F)93 mm (3.7 inches)87%moderate
March Weather4°C (40°F)96 mm (3.8 inches)87%high
April Weather10°C (50°F)117 mm (4.6 inches)87%very high
May Weather17°C (62°F)127 mm (5.0 inches)81%very high
June Weather21°C (71°F)133 mm (5.2 inches)82%very high
July Weather24°C (75°F)126 mm (5.0 inches)81%very high
August Weather22°C (72°F)83 mm (3.3 inches)78%very high
September Weather20°C (68°F)77 mm (3.0 inches)78%very high
October Weather14°C (57°F)95 mm (3.7 inches)82%high
November Weather5°C (41°F)90 mm (3.6 inches)89%moderate
December Weather1°C (35°F)81 mm (3.2 inches)86%low

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