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September Weather in Whitehall, United States

Last updated: June 24, 2025

In Whitehall, United States, the average temperature in September hovers around 18°C (64°F). Expect minimums dipping to 2°C (36°F) and soaring highs reaching 33°C (91°F). During this month, precipitation averages 73 mm (2.9 in) over approximately 8 days, with an average humidity of 72%. Make sure to pack accordingly to enjoy your stay!

September Temperature in Whitehall

In September in Whitehall, the average temperature is 18°C (64°F). Maximums can reach 33°C (91°F), and minimums can be as low as 2°C (36°F). This makes Whitehall a great destination for travelers looking to experience a range of temperatures, from warm days to cooler nights.

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

The chart illustrates September temperature patterns in Whitehall, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Whitehall, September typically has an average temperature of 18°C (64°F), with highs reaching up to 33°C (91°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec242633455867737164523829
Data source: Temperature data for Whitehall 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 Whitehall

In Whitehall in September, the precipitation amount is 73 mm (2.9 in) over a span of 8 days.

September Precipitation Trends in Whitehall

The chart displays monthly precipitation patterns in Whitehall, 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 Whitehall, September typically receives around 73 mm (2.9 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec798468120859012399731389991
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Whitehall

In Whitehall in September, humidity is 72%. With an average temperature of 18°C (64°F), this humidity feels like a warm, sticky embrace, making travel somewhat uncomfortable as the air clings to your skin, leaving you longing for a refreshing breeze.

September Average Humidity in Whitehall

This chart illustrates the average monthly humidity levels in Whitehall, 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 Whitehall is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%88%86%84%76%72%67%64%72%81%87%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Whitehall

In Whitehall in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Whitehall.

Maximum UV Index Levels in Whitehall for September

The chart shows the monthly maximum UV Index (UVI) for Whitehall 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 Whitehall typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3458910997532
Data source: Whitehall 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 Whitehall Compares to Other Months

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

This table compares monthly weather conditions in Whitehall, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (24°F)79 mm (3.1 inches)89%moderate
February Weather-3°C (26°F)84 mm (3.3 inches)88%moderate
March Weather1°C (33°F)68 mm (2.7 inches)86%moderate
April Weather7°C (46°F)120 mm (4.7 inches)84%very high
May Weather14°C (58°F)85 mm (3.4 inches)76%very high
June Weather19°C (67°F)90 mm (3.5 inches)72%very high
July Weather23°C (73°F)123 mm (4.8 inches)66%very high
August Weather22°C (71°F)99 mm (3.9 inches)64%very high
September Weather18°C (64°F)73 mm (2.9 inches)72%high
October Weather11°C (53°F)138 mm (5.4 inches)81%moderate
November Weather3°C (38°F)99 mm (3.9 inches)87%moderate
December Weather-2°C (30°F)91 mm (3.6 inches)84%low

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