September Weather in Parks, United States

Last updated: June 24, 2025

In September, the average temperature in Parks, United States hovers around 18°C (64°F). However, temperatures can vary dramatically, with a minimum of -1°C (31°F) and soaring to a maximum of 34°C (93°F). Expect some rain, as precipitation averages 33 mm (1.3 in) over 6 days. Relative humidity remains comfortably at 59%, making it a versatile time to explore the area!

September Temperature in Parks

In September in Parks, the average temperature is 18°C (64°F). Maximum temperatures can reach 34°C (93°F), while minimums can plummet to as low as -1°C (31°F). This variation makes it essential for travelers to pack both light clothing for warmer days and warmer layers for cooler nights.

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

The chart illustrates September temperature patterns in Parks, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Parks, September typically has an average temperature of 18°C (64°F), with highs reaching up to 34°C (93°F) and lows dropping to around -1°C (31°F).

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

September Precipitation in Parks

In Parks, in September, the precipitation amount is 33 mm (1.3 in) over the course of 6 days.

September Precipitation Trends in Parks

The chart displays monthly precipitation patterns in Parks, 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 Parks, September typically receives around 33 mm (1.3 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 Parks

In Parks in September, humidity is 59%. With an average temperature of 18°C (64°F), this humidity feels like a mild embrace, making it comfortable for traveling and perfect for exploring the sights without feeling too hot or sticky.

September Average Humidity in Parks

This chart illustrates the average monthly humidity levels in Parks, 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 Parks is approximately 59%, 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 Parks

In Parks in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Parks.

Maximum UV Index Levels in Parks for September

The chart shows the monthly maximum UV Index (UVI) for Parks 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 Parks typically reaches 11, which falls under the extreme exposure category.

Data source: Parks 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 Parks Compares to Other Months

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

This table compares monthly weather conditions in Parks, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	0°C (33°F)	58 mm (2.3 inches)	80%	moderate
February Weather	1°C (34°F)	60 mm (2.4 inches)	83%	high
March Weather	4°C (40°F)	73 mm (2.9 inches)	72%	very high
April Weather	10°C (50°F)	24 mm (0.9 inches)	63%	extreme
May Weather	14°C (57°F)	31 mm (1.2 inches)	46%	extreme
June Weather	21°C (69°F)	7 mm (0.3 inches)	35%	extreme
July Weather	22°C (71°F)	112 mm (4.4 inches)	33%	extreme
August Weather	21°C (70°F)	57 mm (2.2 inches)	41%	extreme
September Weather	18°C (64°F)	33 mm (1.3 inches)	59%	extreme
October Weather	11°C (52°F)	30 mm (1.2 inches)	70%	very high
November Weather	6°C (43°F)	34 mm (1.3 inches)	79%	high
December Weather	1°C (34°F)	46 mm (1.8 inches)	82%	moderate