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September Weather in Dillsburg, United States

Last updated: June 24, 2025

In Dillsburg, United States, the average temperature in September hovers around 21°C (70°F). Expect a minimum of 5°C (41°F) and a maximum of 34°C (93°F). During this time, you can anticipate around 119 mm (4.7 in) of precipitation spread over approximately 9 days, with an average humidity level of 75%.

September Temperature in Dillsburg

In September in Dillsburg, the average temperature is 21°C (70°F). Maximums can reach 34°C (93°F), while minimums can drop as low as 5°C (41°F). This makes it an ideal time for travelers to enjoy a variety of outdoor activities while being prepared for both warm and cooler temperatures.

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

The chart illustrates September temperature patterns in Dillsburg, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Dillsburg, September typically has an average temperature of 21°C (70°F), with highs reaching up to 34°C (93°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec343743546473787569594538
Data source: Temperature data for Dillsburg 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 Dillsburg

In Dillsburg in September, the precipitation amount is 119 mm (4.7 in) occurring over a span of 9 days.

September Precipitation Trends in Dillsburg

The chart displays monthly precipitation patterns in Dillsburg, 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 Dillsburg, September typically receives around 119 mm (4.7 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec609894102129941391181191028588
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Dillsburg

In Dillsburg in September, humidity is 75%. With an average temperature of 21°C (70°F), this humidity feels like a warm, enveloping blanket that makes exploring the area feel slightly sticky, requiring travelers to stay hydrated and take occasional breaks in the shade to fully enjoy their adventures.

September Average Humidity in Dillsburg

This chart illustrates the average monthly humidity levels in Dillsburg, 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 Dillsburg is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%83%83%81%78%79%74%72%75%81%85%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Dillsburg

In Dillsburg 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 Dillsburg.

Maximum UV Index Levels in Dillsburg for September

The chart shows the monthly maximum UV Index (UVI) for Dillsburg 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 Dillsburg typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098642
Data source: Dillsburg 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 Dillsburg Compares to Other Months

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

This table compares monthly weather conditions in Dillsburg, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)60 mm (2.4 inches)84%moderate
February Weather3°C (38°F)98 mm (3.8 inches)83%moderate
March Weather6°C (43°F)94 mm (3.7 inches)83%high
April Weather12°C (54°F)102 mm (4.0 inches)81%very high
May Weather18°C (64°F)129 mm (5.1 inches)78%very high
June Weather23°C (73°F)94 mm (3.7 inches)79%very high
July Weather26°C (78°F)139 mm (5.5 inches)74%very high
August Weather24°C (76°F)118 mm (4.7 inches)72%very high
September Weather21°C (70°F)119 mm (4.7 inches)75%very high
October Weather15°C (60°F)102 mm (4.0 inches)81%high
November Weather7°C (45°F)85 mm (3.3 inches)85%moderate
December Weather3°C (38°F)88 mm (3.5 inches)84%low

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