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September Weather in Hershey, United States

Last updated: June 24, 2025

In September, the average temperature in Hershey, United States hovers around 19°C (67°F), offering a pleasant climate. Expect temperatures to range from a brisk 2°C (35°F) to a warm 36°C (98°F). During this month, precipitation amounts to 47 mm (1.9 in) spread over about 5 days, contributing to an average humidity of 70%. Embrace the diverse weather and prepare accordingly!

September Temperature in Hershey

In September in Hershey, the average temperature is 19°C (67°F). The maximum can reach 36°C (98°F), while the minimum can be as low as 2°C (35°F). Be prepared for warm days and cool nights during your travels.

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

The chart illustrates September temperature patterns in Hershey, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hershey, September typically has an average temperature of 19°C (67°F), with highs reaching up to 36°C (98°F) and lows dropping to around 2°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec282639475872767367493931
Data source: Temperature data for Hershey 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 Hershey

In Hershey in September, the precipitation amount is 47 mm (1.9 in) spread over a duration of 5 days.

September Precipitation Trends in Hershey

The chart displays monthly precipitation patterns in Hershey, 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 Hershey, September typically receives around 47 mm (1.9 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec1419684611467666447422226
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Hershey

In Hershey in September humidity is 70%. With an average temperature of 19°C (67°F), this humidity feels like a warm blanket wrapping around you, making traveling somewhat uncomfortable and sticky, as the air feels dense and every movement requires a bit more effort.

September Average Humidity in Hershey

This chart illustrates the average monthly humidity levels in Hershey, 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 Hershey is approximately 70%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec73%80%64%64%76%79%77%79%70%64%75%78%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Hershey

In Hershey 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 Hershey.

Maximum UV Index Levels in Hershey for September

The chart shows the monthly maximum UV Index (UVI) for Hershey 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 Hershey typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3569101111109643
Data source: Hershey 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 Hershey Compares to Other Months

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

This table compares monthly weather conditions in Hershey, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (28°F)14 mm (0.6 inches)73%moderate
February Weather-3°C (26°F)19 mm (0.7 inches)80%moderate
March Weather4°C (40°F)68 mm (2.7 inches)64%high
April Weather8°C (47°F)46 mm (1.8 inches)64%very high
May Weather14°C (58°F)113 mm (4.5 inches)76%very high
June Weather22°C (72°F)66 mm (2.6 inches)79%extreme
July Weather24°C (76°F)66 mm (2.6 inches)77%extreme
August Weather23°C (73°F)64 mm (2.5 inches)79%very high
September Weather19°C (67°F)47 mm (1.9 inches)70%very high
October Weather9°C (49°F)42 mm (1.7 inches)64%high
November Weather4°C (39°F)22 mm (0.9 inches)75%moderate
December Weather-1°C (31°F)25 mm (1.0 inches)78%moderate

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