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September Weather in Leechburg, United States

Last updated: June 24, 2025

In September, the average temperature in Leechburg, United States hovers around 19°C (66°F), making it a pleasant time to explore. Temperatures can vary significantly, with a minimum of 4°C (39°F) and a maximum of 33°C (91°F). Be prepared for some rain, as the area receives 127 mm (5.0 in) of precipitation over approximately 10 days. Average humidity sits at a comfortable 67%, ensuring a mild and enjoyable atmosphere.

September Temperature in Leechburg

In September in Leechburg, the average temperature is 19°C (66°F). Maximum temperatures can reach 33°C (91°F), while minimums can drop as low as 4°C (39°F). This makes Leechburg an ideal destination for travelers seeking a pleasant climate with a range of temperatures.

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

The chart illustrates September temperature patterns in Leechburg, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Leechburg, September typically has an average temperature of 19°C (66°F), with highs reaching up to 33°C (91°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec303440506169747266564135
Data source: Temperature data for Leechburg 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 Leechburg

In Leechburg in September, the precipitation amount is 127 mm (5.0 in), spread over a period of 10 days.

September Precipitation Trends in Leechburg

The chart displays monthly precipitation patterns in Leechburg, 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 Leechburg, September typically receives around 127 mm (5.0 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec9812510813316114015110012712597103
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Leechburg

In Leechburg in September humidity is 67%. With an average temperature of 19°C (66°F), this humidity feels like a warm embrace that envelops you as you travel, making each step a little heavier but still comfortable enough to explore the vibrant surroundings.

September Average Humidity in Leechburg

This chart illustrates the average monthly humidity levels in Leechburg, 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 Leechburg is approximately 67%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%90%89%88%80%79%74%64%67%81%89%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Leechburg

In Leechburg 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 Leechburg.

Maximum UV Index Levels in Leechburg for September

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

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

This table compares monthly weather conditions in Leechburg, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)98 mm (3.9 inches)89%moderate
February Weather1°C (34°F)124 mm (4.9 inches)90%moderate
March Weather5°C (40°F)108 mm (4.2 inches)89%high
April Weather10°C (51°F)132 mm (5.2 inches)88%very high
May Weather16°C (61°F)161 mm (6.3 inches)80%very high
June Weather21°C (69°F)140 mm (5.5 inches)79%very high
July Weather23°C (74°F)151 mm (6.0 inches)74%very high
August Weather22°C (72°F)100 mm (3.9 inches)64%very high
September Weather19°C (66°F)127 mm (5.0 inches)67%very high
October Weather13°C (56°F)125 mm (4.9 inches)81%high
November Weather5°C (41°F)97 mm (3.8 inches)89%moderate
December Weather2°C (35°F)103 mm (4.1 inches)88%low

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