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September Weather in Greensburg, United States

Last updated: June 24, 2025

In September, the average temperature in Greensburg, United States hovers around 22°C (73°F), offering a pleasant climate for outdoor activities. Temperatures can vary significantly, ranging from a brisk 5°C (41°F) to a scorching 38°C (101°F). Expect about 49 mm (1.9 in) of precipitation spread over 7 days, contributing to an average humidity of 67%, which adds a refreshing touch to the air. Whether you're exploring or relaxing, the weather is sure to enhance your experience!

September Temperature in Greensburg

In September in Greensburg, the average temperature is 22°C (73°F), with maximums reaching up to 38°C (101°F) and minimums dropping as low as 5°C (41°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

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

The chart illustrates September temperature patterns in Greensburg, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Greensburg, September typically has an average temperature of 22°C (73°F), with highs reaching up to 38°C (101°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec333447546576807772574537
Data source: Temperature data for Greensburg 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 Greensburg

In Greensburg in September, the precipitation amount is 49 mm (1.9 in) over the course of 7 days.

September Precipitation Trends in Greensburg

The chart displays monthly precipitation patterns in Greensburg, 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 Greensburg, September typically receives around 49 mm (1.9 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec2719695316073476249851832
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Greensburg

In Greensburg in September, humidity is 67%. With an average temperature of 22°C (73°F), this humidity feels like a warm, damp blanket enveloping you, making outdoor activities slightly uncomfortable but still bearable for travelers who enjoy a tropical atmosphere.

September Average Humidity in Greensburg

This chart illustrates the average monthly humidity levels in Greensburg, 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 Greensburg is approximately 67%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%76%67%70%82%82%81%76%67%72%80%83%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Greensburg

In Greensburg 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 Greensburg.

Maximum UV Index Levels in Greensburg for September

The chart shows the monthly maximum UV Index (UVI) for Greensburg 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 Greensburg typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec45710111111109753
Data source: Greensburg 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 Greensburg Compares to Other Months

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

This table compares monthly weather conditions in Greensburg, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (33°F)27 mm (1.1 inches)75%moderate
February Weather1°C (34°F)18 mm (0.7 inches)76%moderate
March Weather8°C (47°F)69 mm (2.7 inches)67%high
April Weather12°C (54°F)53 mm (2.1 inches)70%very high
May Weather18°C (65°F)160 mm (6.3 inches)82%extreme
June Weather25°C (77°F)73 mm (2.9 inches)82%extreme
July Weather26°C (80°F)47 mm (1.9 inches)81%extreme
August Weather25°C (77°F)62 mm (2.4 inches)76%very high
September Weather22°C (73°F)49 mm (1.9 inches)67%very high
October Weather14°C (57°F)85 mm (3.3 inches)72%high
November Weather7°C (45°F)17 mm (0.7 inches)80%moderate
December Weather3°C (38°F)32 mm (1.2 inches)83%moderate

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