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September Weather in Butler, United States

Last updated: June 24, 2025

In September, the average temperature in Butler, United States is a warm 26°C (79°F), making it a pleasant time to visit. However, be prepared for temperature fluctuations, as it can drop as low as 12°C (53°F) or soar to a scorching 39°C (103°F). During this month, expect around 94 mm (3.7 in) of rain spread over 10 days, contributing to an average humidity of 80%. Stay hydrated and enjoy your time in this beautiful locale!

September Temperature in Butler

In September in Butler, the average temperature is 26°C (79°F). Maximum temperatures can reach 39°C (103°F), while minimums can drop to as low as 12°C (53°F). Be prepared for warm days and cooler nights, making it a great time for outdoor adventures and exploring the area.

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 (79°F), with highs reaching up to 39°C (103°F) and lows dropping to around 12°C (53°F).
JanFebMarAprMayJunJulAugSepOctNovDec505662667580828279715653
Data source: Temperature data for Butler 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 Butler

In Butler in September, the precipitation amount is 94 mm (3.7 in) over a duration of 10 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 94 mm (3.7 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec1081221101221131571161149410378139
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Butler

In Butler in September humidity is 80%. With an average temperature of 26°C (79°F), this humidity feels like a heavy blanket, making outdoor activities feel sticky and exhausting, potentially dampening the travel experience and necessitating frequent breaks to cool down and hydrate.

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 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%80%80%78%73%71%79%78%80%76%83%87%
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.
JanFebMarAprMayJunJulAugSepOctNovDec478111111111110864
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.
 TemperaturePrecipitationHumidityUV
January Weather10°C (50°F)108 mm (4.2 inches)82%moderate
February Weather13°C (56°F)122 mm (4.8 inches)80%high
March Weather16°C (62°F)110 mm (4.3 inches)80%very high
April Weather19°C (66°F)122 mm (4.8 inches)78%extreme
May Weather24°C (75°F)113 mm (4.4 inches)73%extreme
June Weather27°C (80°F)157 mm (6.2 inches)71%extreme
July Weather28°C (82°F)116 mm (4.6 inches)79%extreme
August Weather28°C (82°F)113 mm (4.5 inches)78%extreme
September Weather26°C (79°F)94 mm (3.7 inches)80%very high
October Weather21°C (71°F)103 mm (4.1 inches)76%very high
November Weather14°C (57°F)78 mm (3.1 inches)83%high
December Weather12°C (53°F)139 mm (5.5 inches)87%moderate

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