September Weather in Glenwood, United States

Last updated: June 24, 2025

The average temperature in Glenwood, United States during September is a comfortable 21°C (70°F). However, it can vary significantly, with minimums plummeting to 5°C (41°F) and maximums soaring to 36°C (97°F). Expect about 90 mm (3.5 in) of precipitation spread across 10 days, accompanied by a high average humidity of 75%. This combination makes for a unique climate that's both warm and refreshing!

September Temperature in Glenwood

In September in Glenwood, the average temperature is 21°C (70°F). Maximums can reach 36°C (97°F), and minimums can dip as low as 5°C (41°F). It's a great time to visit for those who enjoy mild weather with the possibility of warm days and cool evenings.

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

The chart illustrates September temperature patterns in Glenwood, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Glenwood, September typically has an average temperature of 21°C (70°F), with highs reaching up to 36°C (97°F) and lows dropping to around 5°C (41°F).

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

September Precipitation in Glenwood

In Glenwood in September, the precipitation amount is 90 mm (3.5 in) over the course of 10 days.

September Precipitation Trends in Glenwood

The chart displays monthly precipitation patterns in Glenwood, 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 Glenwood, September typically receives around 90 mm (3.5 inches) of precipitation spread over approximately 10 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 Glenwood

In Glenwood in September, humidity is 75%. With an average temperature of 21°C (70°F), this humidity feels like a warm, enveloping blanket that makes exploring the area feel slightly sticky, requiring travelers to stay hydrated and take occasional breaks in the shade to fully enjoy their adventures.

September Average Humidity in Glenwood

This chart illustrates the average monthly humidity levels in Glenwood, 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 Glenwood is approximately 75%, 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 Glenwood

In Glenwood in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Glenwood.

Maximum UV Index Levels in Glenwood for September

The chart shows the monthly maximum UV Index (UVI) for Glenwood 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 Glenwood typically reaches 8, which falls under the very high exposure category.

Data source: Glenwood 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 Glenwood Compares to Other Months

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

This table compares monthly weather conditions in Glenwood, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (26°F)	33 mm (1.3 inches)	76%	moderate
February Weather	-3°C (26°F)	33 mm (1.3 inches)	80%	moderate
March Weather	5°C (42°F)	96 mm (3.8 inches)	73%	high
April Weather	10°C (51°F)	58 mm (2.3 inches)	74%	very high
May Weather	17°C (64°F)	148 mm (5.8 inches)	78%	very high
June Weather	24°C (76°F)	124 mm (4.9 inches)	82%	very high
July Weather	26°C (78°F)	83 mm (3.3 inches)	83%	very high
August Weather	24°C (75°F)	102 mm (4.0 inches)	80%	very high
September Weather	21°C (70°F)	90 mm (3.5 inches)	75%	very high
October Weather	12°C (53°F)	148 mm (5.8 inches)	75%	high
November Weather	5°C (41°F)	30 mm (1.2 inches)	82%	moderate
December Weather	0°C (32°F)	34 mm (1.4 inches)	83%	low