September Weather in Glenrock, United States

Last updated: June 24, 2025

In September, the average temperature in Glenrock, United States is a comfortable 16°C (61°F). However, be prepared for a range of temperatures, with minimums plummeting to -8°C (17°F) and maximums soaring to 36°C (97°F). During this month, expect about 35 mm (1.4 in) of precipitation spread over 5 days and enjoy moderate humidity levels at 72%.

September Temperature in Glenrock

In September in Glenrock, the average temperature is 16°C (61°F). The maximum can reach 36°C (97°F), while the minimum can drop as low as -8°C (17°F). Be prepared for a wide range of temperatures, making it essential to pack accordingly for your travels.

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

The chart illustrates September temperature patterns in Glenrock, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Glenrock, September typically has an average temperature of 16°C (61°F), with highs reaching up to 36°C (97°F) and lows dropping to around -8°C (17°F).

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

September Precipitation in Glenrock

In Glenrock in September, the precipitation amount is 35 mm (1.4 in) over a span of 5 days.

September Precipitation Trends in Glenrock

The chart displays monthly precipitation patterns in Glenrock, 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 Glenrock, September typically receives around 35 mm (1.4 inches) of precipitation spread over approximately 5 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 Glenrock

In Glenrock in September humidity is 72%. With an average temperature of 16°C (61°F), this humidity feels like a damp blanket wrapping around you, making every step feel heavier and requiring extra effort while traveling.

September Average Humidity in Glenrock

This chart illustrates the average monthly humidity levels in Glenrock, 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 Glenrock is approximately 72%, 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 Glenrock

In Glenrock 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 Glenrock.

Maximum UV Index Levels in Glenrock for September

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

Data source: Glenrock 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 Glenrock Compares to Other Months

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

This table compares monthly weather conditions in Glenrock, 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 (24°F)	23 mm (0.9 inches)	79%	moderate
February Weather	-6°C (21°F)	35 mm (1.4 inches)	81%	high
March Weather	1°C (33°F)	57 mm (2.2 inches)	70%	high
April Weather	4°C (39°F)	64 mm (2.5 inches)	67%	extreme
May Weather	10°C (50°F)	87 mm (3.4 inches)	70%	very high
June Weather	18°C (64°F)	42 mm (1.7 inches)	75%	extreme
July Weather	22°C (72°F)	28 mm (1.1 inches)	76%	extreme
August Weather	20°C (69°F)	29 mm (1.1 inches)	76%	very high
September Weather	16°C (61°F)	35 mm (1.4 inches)	72%	very high
October Weather	5°C (42°F)	48 mm (1.9 inches)	70%	high
November Weather	2°C (35°F)	29 mm (1.1 inches)	76%	moderate
December Weather	-3°C (27°F)	27 mm (1.1 inches)	81%	moderate