September Weather in Butler, United States

Last updated: June 24, 2025

In Butler, United States, the average temperature in September hovers around 23°C (73°F), making it a pleasant time to visit. The temperature range can vary significantly, with lows of 5°C (42°F) and highs reaching up to 34°C (93°F). Expect 77 mm (3.0 in) of rain spread over approximately 7 days, contributing to an average humidity level of 72%.

September Temperature in Butler

In September in Butler, the average temperature is 23°C (73°F). The maximum can reach 34°C (93°F), and the minimum can be as low as 5°C (42°F). This varied climate makes Butler an ideal destination for travelers seeking both warm and cooler weather experiences.

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

The chart illustrates September temperature patterns in Butler, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Butler, September typically has an average temperature of 23°C (73°F), with highs reaching up to 34°C (93°F) and lows dropping to around 5°C (42°F).

Data source: Temperature data for Butler generated using information from the Copernicus Climate Change Service.

September Precipitation in Butler

In Butler in September, the precipitation amount is 77 mm (3.0 in) over the course of 7 days.

September Precipitation Trends in Butler

The chart displays monthly precipitation patterns in Butler, 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 Butler, September typically receives around 77 mm (3.0 inches) of precipitation spread over approximately 7 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

September Humidity in Butler

In Butler in September, humidity is 72%. With an average temperature of 23°C (73°F), this humidity feels like a warm embrace, making travel exhilarating yet slightly sticky, as the air clings to your skin and invites you to seek out cool, refreshing places to explore.

September Average Humidity in Butler

This chart illustrates the average monthly humidity levels in Butler, 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 Butler is approximately 72%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Butler

In Butler 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 Butler.

Maximum UV Index Levels in Butler for September

The chart shows the monthly maximum UV Index (UVI) for Butler 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 Butler typically reaches 9, which falls under the very high exposure category.

Data source: Butler 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 Butler Compares to Other Months

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

This table compares monthly weather conditions in Butler, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	1°C (34°F)	66 mm (2.6 inches)	80%	moderate
February Weather	2°C (35°F)	57 mm (2.2 inches)	78%	moderate
March Weather	9°C (49°F)	116 mm (4.6 inches)	75%	high
April Weather	13°C (56°F)	110 mm (4.3 inches)	77%	very high
May Weather	19°C (67°F)	185 mm (7.3 inches)	82%	very high
June Weather	25°C (77°F)	87 mm (3.4 inches)	83%	extreme
July Weather	27°C (81°F)	126 mm (5.0 inches)	81%	extreme
August Weather	25°C (77°F)	135 mm (5.3 inches)	78%	very high
September Weather	23°C (73°F)	77 mm (3.0 inches)	72%	very high
October Weather	15°C (59°F)	101 mm (4.0 inches)	72%	high
November Weather	8°C (46°F)	51 mm (2.0 inches)	84%	moderate
December Weather	4°C (40°F)	33 mm (1.3 inches)	86%	moderate