September Weather in Blue Mound, United States

Last updated: June 24, 2025

In Blue Mound, United States, the average temperature in September hovers around 21°C (71°F), with a minimum dipping to 6°C (42°F) and a maximum reaching up to 34°C (93°F). Expect approximately 71 mm (2.8 in) of precipitation spread over 7 days, while the average humidity remains a comfortable 79%. Embrace the warmth and occasional rain as you explore the beauty of this vibrant locale!

September Temperature in Blue Mound

In September in Blue Mound, the average temperature is 21°C (71°F). The maximum can reach 34°C (93°F), and the minimum can be as low as 6°C (42°F). This diverse range of temperatures makes it a favorable time for travelers to enjoy outdoor activities and explore the local attractions comfortably.

September Weather in Blue Mound: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Blue Mound, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Blue Mound, September typically has an average temperature of 21°C (71°F), with highs reaching up to 34°C (93°F) and lows dropping to around 6°C (42°F).

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

September Precipitation in Blue Mound

In Blue Mound in September, the precipitation amount is 71 mm (2.8 in) over a span of 7 days.

September Precipitation Trends in Blue Mound

The chart displays monthly precipitation patterns in Blue Mound, 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 Blue Mound, September typically receives around 71 mm (2.8 inches) of precipitation spread over approximately 7 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 Blue Mound

In Blue Mound in September humidity is 79%. With an average temperature of 21°C (71°F), this humidity feels like a warm, sticky embrace that can make outdoor activities feel laborious and exhausting. Travelers should be prepared to hydrate frequently and take breaks in shaded areas to fully enjoy their time exploring.

September Average Humidity in Blue Mound

This chart illustrates the average monthly humidity levels in Blue Mound, 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 Blue Mound is approximately 79%, 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 Blue Mound

In Blue Mound 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 Blue Mound.

Maximum UV Index Levels in Blue Mound for September

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

Data source: Blue Mound 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 Blue Mound Compares to Other Months

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

This table compares monthly weather conditions in Blue Mound, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-2°C (29°F)	76 mm (3.0 inches)	84%	moderate
February Weather	0°C (32°F)	76 mm (3.0 inches)	82%	moderate
March Weather	6°C (44°F)	131 mm (5.2 inches)	84%	high
April Weather	11°C (53°F)	132 mm (5.2 inches)	83%	very high
May Weather	19°C (66°F)	149 mm (5.9 inches)	80%	very high
June Weather	24°C (75°F)	112 mm (4.4 inches)	83%	extreme
July Weather	25°C (78°F)	114 mm (4.5 inches)	82%	extreme
August Weather	23°C (74°F)	101 mm (4.0 inches)	82%	very high
September Weather	21°C (71°F)	71 mm (2.8 inches)	79%	very high
October Weather	14°C (58°F)	120 mm (4.7 inches)	79%	high
November Weather	5°C (42°F)	76 mm (3.0 inches)	88%	moderate
December Weather	2°C (36°F)	53 mm (2.1 inches)	87%	moderate