September Weather in Summit Park, United States

Last updated: June 24, 2025

In September, the average temperature in Summit Park, United States hovers around 14°C (57°F), showcasing a delightful climate. However, be prepared for temperature fluctuations, as it can dip to a brisk -9°C (16°F) or soar to a warm 32°C (89°F). With an average precipitation of 43 mm (1.7 in) spread over 6 days, it's wise to pack an umbrella. The average humidity sits comfortably at 46%, providing just the right amount of moisture in the air.

September Temperature in Summit Park

In September in Summit Park, the average temperature is 14°C (57°F). Maximum temperatures can reach 32°C (89°F), while minimum temperatures can drop as low as -9°C (16°F). Be prepared for a wide range of weather conditions when planning your travel.

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

The chart illustrates September temperature patterns in Summit Park, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Summit Park, September typically has an average temperature of 14°C (57°F), with highs reaching up to 32°C (89°F) and lows dropping to around -9°C (16°F).

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

September Precipitation in Summit Park

In Summit Park in September, the precipitation amount is 43 mm (1.7 in) over a period of 6 days.

September Precipitation Trends in Summit Park

The chart displays monthly precipitation patterns in Summit 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 Summit Park, September typically receives around 43 mm (1.7 inches) of precipitation spread over approximately 6 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Summit Park

In Summit Park in September, humidity is 46%. With an average temperature of 14°C (57°F), this humidity feels like a refreshing embrace, making it comfortable for exploring the sights and enjoying outdoor activities without feeling overly sticky or oppressive.

September Average Humidity in Summit Park

This chart illustrates the average monthly humidity levels in Summit 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 Summit Park is approximately 46%, 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 Summit Park

In Summit 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 Summit Park.

Maximum UV Index Levels in Summit Park for September

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

Data source: Summit 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 Summit Park Compares to Other Months

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

This table compares monthly weather conditions in Summit Park, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-5°C (23°F)	80 mm (3.1 inches)	91%	moderate
February Weather	-4°C (25°F)	90 mm (3.5 inches)	92%	high
March Weather	0°C (33°F)	83 mm (3.3 inches)	84%	very high
April Weather	2°C (36°F)	76 mm (3.0 inches)	74%	extreme
May Weather	8°C (46°F)	78 mm (3.1 inches)	62%	extreme
June Weather	15°C (60°F)	28 mm (1.1 inches)	56%	extreme
July Weather	20°C (69°F)	26 mm (1.0 inches)	44%	extreme
August Weather	19°C (66°F)	32 mm (1.2 inches)	37%	extreme
September Weather	14°C (57°F)	43 mm (1.7 inches)	46%	very high
October Weather	5°C (40°F)	55 mm (2.2 inches)	67%	high
November Weather	-1°C (31°F)	57 mm (2.2 inches)	84%	moderate
December Weather	-6°C (22°F)	71 mm (2.8 inches)	88%	moderate