September Weather in Butler, United States

Last updated: June 24, 2025

The average temperature in Butler, United States during September is a pleasant 26°C (78°F). Daily temperatures can range from a cool 12°C (54°F) to a scorching 38°C (100°F). Expect some rain, with an average precipitation amount of 99 mm (3.9 in) spread over 9 days, and stay hydrated as the average humidity hovers around a balmy 82%.

September Temperature in Butler

In September in Butler, the average temperature is 26°C (78°F). Maximum temperatures can reach 38°C (100°F), while minimums can drop as low as 12°C (54°F). Pack accordingly for warm days and cooler evenings during your travels!

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 26°C (78°F), with highs reaching up to 38°C (100°F) and lows dropping to around 12°C (54°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 99 mm (3.9 in) during a span of 9 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 99 mm (3.9 inches) of precipitation spread over approximately 9 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 82%. With an average temperature of 26°C (78°F), this humidity feels like a thick blanket wrapping around you, making every step feel heavier and the air almost tangible, which can be quite challenging for traveling.

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 82%, 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 reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more 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 10, 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	9°C (49°F)	115 mm (4.5 inches)	86%	moderate
February Weather	13°C (55°F)	115 mm (4.5 inches)	84%	high
March Weather	15°C (60°F)	85 mm (3.4 inches)	83%	very high
April Weather	18°C (65°F)	100 mm (3.9 inches)	81%	very high
May Weather	23°C (74°F)	85 mm (3.3 inches)	81%	extreme
June Weather	26°C (79°F)	106 mm (4.2 inches)	81%	extreme
July Weather	27°C (82°F)	103 mm (4.1 inches)	83%	extreme
August Weather	27°C (81°F)	115 mm (4.5 inches)	81%	extreme
September Weather	26°C (78°F)	99 mm (3.9 inches)	82%	very high
October Weather	21°C (70°F)	103 mm (4.1 inches)	78%	very high
November Weather	13°C (56°F)	70 mm (2.8 inches)	86%	high
December Weather	11°C (52°F)	120 mm (4.7 inches)	89%	moderate