September Weather in College Park, United States

Last updated: June 24, 2025

The average temperature in College Park, United States during September hovers around 24°C (75°F). Expect a minimum temperature of 10°C (50°F) and a maximum reaching up to 36°C (97°F). This month brings about 112 mm (4.4 in) of precipitation spread across 8 days, contributing to an average humidity level of 82%.

September Temperature in College Park

In September in College Park, the average temperature is 24°C (75°F). The maximum can reach 36°C (97°F), while the minimum can be as low as 10°C (50°F). Whether you're looking to enjoy warm days or cool evenings, this climate provides a comfortable backdrop for exploring and enjoying all that College Park has to offer.

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

The chart illustrates September temperature patterns in College Park, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In College Park, September typically has an average temperature of 24°C (75°F), with highs reaching up to 36°C (97°F) and lows dropping to around 10°C (50°F).

Data source: Temperature data for College Park generated using information from the Copernicus Climate Change Service.

September Precipitation in College Park

In College Park in September, the total precipitation amount is 112 mm (4.4 in) spread over 8 days.

September Precipitation Trends in College Park

The chart displays monthly precipitation patterns in College 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 College Park, September typically receives around 112 mm (4.4 inches) of precipitation spread over approximately 8 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

September Humidity in College Park

In College Park in September, humidity is 82%. With an average temperature of 24°C (75°F), this humidity feels like a warm embrace, making travel feel sticky and heavy on the skin, often requiring more frequent breaks and hydration.

September Average Humidity in College Park

This chart illustrates the average monthly humidity levels in College 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 College Park is approximately 82%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in College Park

In College Park 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 College Park.

Maximum UV Index Levels in College Park for September

The chart shows the monthly maximum UV Index (UVI) for College 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 College Park typically reaches 9, which falls under the very high exposure category.

Data source: College 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 College Park Compares to Other Months

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

This table compares monthly weather conditions in College Park, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (46°F)	106 mm (4.2 inches)	86%	moderate
February Weather	11°C (51°F)	145 mm (5.7 inches)	84%	high
March Weather	13°C (56°F)	130 mm (5.1 inches)	83%	very high
April Weather	17°C (62°F)	124 mm (4.9 inches)	81%	extreme
May Weather	22°C (71°F)	96 mm (3.8 inches)	81%	extreme
June Weather	25°C (76°F)	121 mm (4.8 inches)	81%	extreme
July Weather	26°C (80°F)	112 mm (4.4 inches)	83%	extreme
August Weather	26°C (79°F)	142 mm (5.6 inches)	81%	very high
September Weather	24°C (75°F)	112 mm (4.4 inches)	82%	very high
October Weather	19°C (66°F)	123 mm (4.9 inches)	78%	very high
November Weather	11°C (52°F)	82 mm (3.2 inches)	86%	high
December Weather	9°C (48°F)	138 mm (5.4 inches)	89%	moderate