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September Weather in Dubois, United States

Last updated: June 24, 2025

In September, the average temperature in Dubois, United States hovers around 15°C (58°F). However, temperatures can vary significantly, dipping to a chilly -1°C (30°F) at night, while soaring to a warm 35°C (95°F) during the day. Expect about 27 mm (1.1 in) of precipitation spread over 4 days, with an average humidity of 67%, making for a pleasantly mild atmosphere.

September Temperature in Dubois

In September in Dubois, the average temperature is 15°C (58°F), with maximums reaching 35°C (95°F) and minimums dropping as low as -1°C (30°F). This wide range of temperatures means travelers should be prepared for both warm days and chilly nights.

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

The chart illustrates September temperature patterns in Dubois, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Dubois, September typically has an average temperature of 15°C (58°F), with highs reaching up to 35°C (95°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec171930395062726858413018
Data source: Temperature data for Dubois 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 Dubois

In Dubois in September, the total precipitation amount is 27 mm (1.1 in) over a span of 4 days.

September Precipitation Trends in Dubois

The chart displays monthly precipitation patterns in Dubois, 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 Dubois, September typically receives around 27 mm (1.1 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec36433940613591727362634
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Dubois

In Dubois in September humidity is 67%. With an average temperature of 15°C (58°F), this humidity feels like a mild blanket wrapped around you, making traveling comfortable yet slightly clingy, perfect for exploring cozy cafes and taking leisurely strolls.

September Average Humidity in Dubois

This chart illustrates the average monthly humidity levels in Dubois, 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 Dubois is approximately 67%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%92%90%83%79%76%74%69%67%72%89%94%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Dubois

In Dubois 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 Dubois.

Maximum UV Index Levels in Dubois for September

The chart shows the monthly maximum UV Index (UVI) for Dubois 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 Dubois typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101111109642
Data source: Dubois 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 Dubois Compares to Other Months

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

This table compares monthly weather conditions in Dubois, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (17°F)36 mm (1.4 inches)93%moderate
February Weather-7°C (19°F)43 mm (1.7 inches)92%moderate
March Weather-1°C (31°F)39 mm (1.5 inches)89%high
April Weather4°C (40°F)40 mm (1.6 inches)83%very high
May Weather10°C (51°F)61 mm (2.4 inches)79%very high
June Weather16°C (62°F)35 mm (1.4 inches)76%extreme
July Weather22°C (72°F)9 mm (0.4 inches)74%extreme
August Weather20°C (69°F)17 mm (0.7 inches)69%very high
September Weather15°C (58°F)27 mm (1.1 inches)67%very high
October Weather5°C (41°F)36 mm (1.4 inches)72%high
November Weather-1°C (31°F)26 mm (1.0 inches)89%moderate
December Weather-8°C (19°F)34 mm (1.3 inches)94%low

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