September Weather in Gypsum, United States

Last updated: June 24, 2025

In September, the average temperature in Gypsum, United States hovers around 13°C (55°F), with a minimum dropping to -4°C (24°F) and a maximum reaching 29°C (84°F). Expect about 24 mm (0.9 in) of precipitation over 5 days, contributing to an average humidity of 65%. This blend of weather patterns creates a unique atmosphere ideal for exploring the region!

September Temperature in Gypsum

In September in Gypsum, the average temperature is 13°C (55°F). The maximum can reach 29°C (84°F) and the minimum can be as low as -4°C (24°F). Be prepared for a wide range of temperatures, making it essential to pack layers for your travels.

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

The chart illustrates September temperature patterns in Gypsum, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Gypsum, September typically has an average temperature of 13°C (55°F), with highs reaching up to 29°C (84°F) and lows dropping to around -4°C (24°F).

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

September Precipitation in Gypsum

In Gypsum in September, the precipitation amount is 24 mm (0.9 in) over the course of 5 days.

September Precipitation Trends in Gypsum

The chart displays monthly precipitation patterns in Gypsum, 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 Gypsum, September typically receives around 24 mm (0.9 inches) of precipitation spread over approximately 5 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 Gypsum

In Gypsum in September, humidity is 65%. With an average temperature of 13°C (55°F), this humidity feels like a cool, damp embrace, making it essential for travelers to dress in layers and be prepared for occasional drizzles, while still enjoying the freshness of the air.

September Average Humidity in Gypsum

This chart illustrates the average monthly humidity levels in Gypsum, 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 Gypsum is approximately 65%, 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 Gypsum

In Gypsum 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 Gypsum.

Maximum UV Index Levels in Gypsum for September

The chart shows the monthly maximum UV Index (UVI) for Gypsum 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 Gypsum typically reaches 10, which falls under the very high exposure category.

Data source: Gypsum 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 Gypsum Compares to Other Months

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

This table compares monthly weather conditions in Gypsum, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-8°C (19°F)	53 mm (2.1 inches)	88%	moderate
February Weather	-6°C (21°F)	74 mm (2.9 inches)	87%	high
March Weather	-1°C (30°F)	61 mm (2.4 inches)	81%	very high
April Weather	1°C (35°F)	57 mm (2.2 inches)	76%	extreme
May Weather	6°C (44°F)	53 mm (2.1 inches)	66%	extreme
June Weather	14°C (57°F)	34 mm (1.4 inches)	58%	extreme
July Weather	18°C (64°F)	39 mm (1.5 inches)	52%	extreme
August Weather	17°C (62°F)	33 mm (1.3 inches)	56%	extreme
September Weather	13°C (55°F)	24 mm (0.9 inches)	65%	very high
October Weather	3°C (38°F)	56 mm (2.2 inches)	76%	high
November Weather	-3°C (27°F)	45 mm (1.8 inches)	82%	moderate
December Weather	-8°C (19°F)	55 mm (2.2 inches)	89%	moderate