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September Weather in University Park, United States

Last updated: June 24, 2025

In University Park, United States, the average temperature in September hovers around 26°C (80°F), with a minimum of 11°C (51°F) and a maximum reaching 38°C (100°F). This month experiences 81 mm (3.2 in) of precipitation spread over 9 days, contributing to an average humidity of 65%. Prepare for a mix of warm days and occasional rain!

September Temperature in University Park

In September in University Park, the average temperature is 26°C (80°F). The maximum can reach 38°C (100°F) and the minimum can be as low as 11°C (51°F). This makes University Park a great destination for travelers seeking warm weather, but be prepared for cooler evenings.

September Weather in University Park: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in University Park, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In University Park, September typically has an average temperature of 26°C (80°F), with highs reaching up to 38°C (100°F) and lows dropping to around 11°C (51°F).
JanFebMarAprMayJunJulAugSepOctNovDec474961657582858579685752
Data source: Temperature data for University Park 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 University Park

In University Park in September, the precipitation amount is 81 mm (3.2 in) spread over a duration of 9 days.

September Precipitation Trends in University Park

The chart displays monthly precipitation patterns in University Park, 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 University Park, September typically receives around 81 mm (3.2 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec60102115123178934796811435566
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in University Park

In University Park in September humidity is 65%. With an average temperature of 26°C (80°F), this humidity feels like a warm, sticky embrace, making travel less comfortable as you navigate the sights.

September Average Humidity in University Park

This chart illustrates the average monthly humidity levels in University Park, 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 University Park is approximately 65%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%79%78%78%81%78%73%66%65%72%82%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in University Park

In University Park in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in University Park.

Maximum UV Index Levels in University Park for September

The chart shows the monthly maximum UV Index (UVI) for University Park 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 University Park typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec478101111111110864
Data source: University Park 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 University Park Compares to Other Months

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

This table compares monthly weather conditions in University Park, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (47°F)60 mm (2.4 inches)80%moderate
February Weather10°C (50°F)102 mm (4.0 inches)79%high
March Weather16°C (61°F)115 mm (4.5 inches)78%very high
April Weather19°C (66°F)122 mm (4.8 inches)78%very high
May Weather24°C (75°F)178 mm (7.0 inches)81%extreme
June Weather28°C (82°F)93 mm (3.6 inches)78%extreme
July Weather30°C (85°F)47 mm (1.8 inches)73%extreme
August Weather29°C (85°F)96 mm (3.8 inches)66%extreme
September Weather26°C (80°F)81 mm (3.2 inches)65%very high
October Weather20°C (68°F)143 mm (5.6 inches)72%very high
November Weather14°C (57°F)55 mm (2.2 inches)82%high
December Weather11°C (52°F)66 mm (2.6 inches)87%moderate

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