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September Weather in Whitehall, United States

Last updated: June 24, 2025

In September, the average temperature in Whitehall, United States is a pleasant 13°C (55°F). However, be prepared for a range, as temperatures can dip to a chilly -5°C (23°F) at their lowest or soar to a warm 34°C (93°F) at their peak. On average, you can expect 42 mm (1.7 in) of rain over about 6 days throughout the month, along with a humidity level of 67%, making for a refreshing climate.

September Temperature in Whitehall

In September in Whitehall, the average temperature is 13°C (55°F). Maximum temperatures can reach 34°C (93°F), while the minimum can drop as low as -5°C (23°F). Be prepared for a wide range of weather, bringing both light clothing for warm days and warmer layers for chilly 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 13°C (55°F), with highs reaching up to 34°C (93°F) and lows dropping to around -5°C (23°F).
JanFebMarAprMayJunJulAugSepOctNovDec171628364758666455382819
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 total precipitation amount is 42 mm (1.7 in) spread over 6 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 42 mm (1.7 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec205138719399434542493327
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 67%. With an average temperature of 13°C (55°F), this humidity feels like a chilly embrace, making travel a bit uncomfortable as the cool air settles in.

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 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 Whitehall

In Whitehall in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to 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 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101110108642
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-8°C (17°F)20 mm (0.8 inches)93%moderate
February Weather-9°C (16°F)51 mm (2.0 inches)92%moderate
March Weather-2°C (28°F)38 mm (1.5 inches)89%high
April Weather2°C (36°F)71 mm (2.8 inches)83%very high
May Weather8°C (47°F)93 mm (3.6 inches)79%very high
June Weather14°C (58°F)99 mm (3.9 inches)76%extreme
July Weather19°C (66°F)43 mm (1.7 inches)74%very high
August Weather18°C (65°F)45 mm (1.8 inches)69%very high
September Weather13°C (55°F)42 mm (1.7 inches)67%very high
October Weather3°C (38°F)49 mm (1.9 inches)72%high
November Weather-2°C (28°F)33 mm (1.3 inches)89%moderate
December Weather-7°C (19°F)27 mm (1.1 inches)94%low

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