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September Weather in Peterstown, United States

Last updated: June 24, 2025

In September, the average temperature in Peterstown, United States hovers around 19°C (67°F), making it a comfortable time to explore. Temperatures can vary, with minimums dipping to 3°C (38°F) and peaks reaching up to 33°C (92°F). Visitors should also be prepared for 94 mm (3.7 in) of precipitation over approximately 9 days, along with an average humidity of 68%.

September Temperature in Peterstown

In September in Peterstown, the average temperature is 19°C (67°F). Maximum temperatures can reach 33°C (92°F), while minimums can dip as low as 3°C (38°F). It's a good idea to pack layers and be prepared for both warm days and chilly nights while traveling.

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

The chart illustrates September temperature patterns in Peterstown, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Peterstown, September typically has an average temperature of 19°C (67°F), with highs reaching up to 33°C (92°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec343944536268737167574338
Data source: Temperature data for Peterstown 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 Peterstown

In Peterstown in September, the precipitation amount reaches 94 mm (3.7 in) over the course of 9 days.

September Precipitation Trends in Peterstown

The chart displays monthly precipitation patterns in Peterstown, 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 Peterstown, September typically receives around 94 mm (3.7 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec7512594113128946683941106893
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Peterstown

In Peterstown in September, humidity is 68%. With an average temperature of 19°C (67°F), this humidity feels like a warm, enveloping blanket, making travel pleasant yet slightly muggy, which can be refreshing while exploring but may require occasional breaks to stay comfortable.

September Average Humidity in Peterstown

This chart illustrates the average monthly humidity levels in Peterstown, 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 Peterstown is approximately 68%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%87%86%84%83%83%79%66%68%78%89%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Peterstown

In Peterstown 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 Peterstown.

Maximum UV Index Levels in Peterstown for September

The chart shows the monthly maximum UV Index (UVI) for Peterstown 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 Peterstown typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46810111111109753
Data source: Peterstown 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 Peterstown Compares to Other Months

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

This table compares monthly weather conditions in Peterstown, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)75 mm (2.9 inches)87%moderate
February Weather4°C (40°F)125 mm (4.9 inches)87%high
March Weather7°C (45°F)94 mm (3.7 inches)86%very high
April Weather12°C (53°F)113 mm (4.5 inches)84%very high
May Weather17°C (62°F)128 mm (5.0 inches)83%extreme
June Weather20°C (68°F)94 mm (3.7 inches)83%extreme
July Weather23°C (73°F)66 mm (2.6 inches)79%extreme
August Weather22°C (71°F)83 mm (3.3 inches)66%very high
September Weather19°C (67°F)94 mm (3.7 inches)68%very high
October Weather14°C (57°F)110 mm (4.3 inches)78%high
November Weather6°C (43°F)68 mm (2.7 inches)89%moderate
December Weather4°C (39°F)93 mm (3.7 inches)86%moderate

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