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September Weather in Lewisburg, United States

Last updated: June 24, 2025

In September, the average temperature in Lewisburg, United States is a pleasant 19°C (66°F). Temperatures can vary, with a minimum of 2°C (36°F) and a maximum of 32°C (91°F). Expect about 94 mm (3.7 in) of rainfall spread across 9 days, contributing to an average humidity of 68%. Whether you’re planning outdoor activities or exploring local culture, be prepared for a mix of weather!

September Temperature in Lewisburg

In September in Lewisburg, the average temperature is 19°C (66°F). Maximum temperatures can reach up to 32°C (91°F), while minimum temperatures can drop as low as 2°C (36°F). Be prepared for a wide range of temperatures and pack accordingly for your travels!

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

The chart illustrates September temperature patterns in Lewisburg, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lewisburg, September typically has an average temperature of 19°C (66°F), with highs reaching up to 32°C (91°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec333843526168727166564237
Data source: Temperature data for Lewisburg 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 Lewisburg

In Lewisburg in September, the precipitation amount reaches 94 mm (3.7 in) over the course of 9 days.

September Precipitation Trends in Lewisburg

The chart displays monthly precipitation patterns in Lewisburg, 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 Lewisburg, September typically receives around 94 mm (3.7 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec79138101123136937184941127096
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Lewisburg

In Lewisburg in September humidity is 68%. With an average temperature of 19°C (66°F), this humidity feels like a warm embrace, creating a sticky atmosphere that can be a bit uncomfortable for traveling.

September Average Humidity in Lewisburg

This chart illustrates the average monthly humidity levels in Lewisburg, 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 Lewisburg is approximately 68%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%87%86%84%83%83%79%66%68%78%89%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Lewisburg

In Lewisburg 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 Lewisburg.

Maximum UV Index Levels in Lewisburg for September

The chart shows the monthly maximum UV Index (UVI) for Lewisburg 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 Lewisburg typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36810111111109753
Data source: Lewisburg 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 Lewisburg Compares to Other Months

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

This table compares monthly weather conditions in Lewisburg, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)79 mm (3.1 inches)87%moderate
February Weather3°C (38°F)138 mm (5.4 inches)87%high
March Weather6°C (43°F)101 mm (4.0 inches)86%very high
April Weather11°C (52°F)123 mm (4.8 inches)84%very high
May Weather16°C (61°F)136 mm (5.4 inches)83%extreme
June Weather20°C (68°F)93 mm (3.7 inches)83%extreme
July Weather22°C (73°F)70 mm (2.8 inches)79%extreme
August Weather21°C (71°F)84 mm (3.3 inches)66%very high
September Weather19°C (66°F)94 mm (3.7 inches)68%very high
October Weather13°C (56°F)112 mm (4.4 inches)78%high
November Weather5°C (42°F)70 mm (2.8 inches)89%moderate
December Weather3°C (38°F)96 mm (3.8 inches)86%moderate

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