September Weather in Reedsburg, United States

Last updated: June 24, 2025

In September, the average temperature in Reedsburg, United States hovers around 18°C (64°F). Expect a minimum of 2°C (35°F) and a potential maximum of 33°C (92°F) for the day. With 108 mm (4.3 in) of precipitation spread across 10 days, it's wise to carry an umbrella. Overall, the average humidity is a relatively high 74%, adding to the climate's unique character.

September Temperature in Reedsburg

In September in Reedsburg, the average temperature is 18°C (64°F). Maximums can reach 33°C (92°F) and minimums can be as low as 2°C (35°F). Travelers should be prepared for a wide range of temperatures.

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

The chart illustrates September temperature patterns in Reedsburg, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Reedsburg, September typically has an average temperature of 18°C (64°F), with highs reaching up to 33°C (92°F) and lows dropping to around 2°C (35°F).

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

September Precipitation in Reedsburg

In Reedsburg in September, the total precipitation amount is 108 mm (4.3 in) spread over a duration of 10 days.

September Precipitation Trends in Reedsburg

The chart displays monthly precipitation patterns in Reedsburg, 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 Reedsburg, September typically receives around 108 mm (4.3 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 Reedsburg

In Reedsburg in September humidity is 74%. With an average temperature of 18°C (64°F), this humidity feels like a warm embrace, making it ideal for leisurely strolls but potentially uncomfortable for extended outdoor activities.

September Average Humidity in Reedsburg

This chart illustrates the average monthly humidity levels in Reedsburg, 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 Reedsburg is approximately 74%, 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 Reedsburg

In Reedsburg 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 Reedsburg.

Maximum UV Index Levels in Reedsburg for September

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

Data source: Reedsburg 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 Reedsburg Compares to Other Months

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

This table compares monthly weather conditions in Reedsburg, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-7°C (21°F)	43 mm (1.7 inches)	84%	low
February Weather	-6°C (22°F)	54 mm (2.1 inches)	85%	moderate
March Weather	2°C (35°F)	58 mm (2.3 inches)	84%	moderate
April Weather	7°C (46°F)	85 mm (3.3 inches)	83%	very high
May Weather	15°C (59°F)	128 mm (5.0 inches)	75%	very high
June Weather	21°C (70°F)	111 mm (4.4 inches)	79%	very high
July Weather	23°C (74°F)	88 mm (3.5 inches)	75%	very high
August Weather	21°C (71°F)	106 mm (4.2 inches)	69%	very high
September Weather	18°C (64°F)	108 mm (4.3 inches)	74%	very high
October Weather	10°C (50°F)	110 mm (4.3 inches)	79%	moderate
November Weather	2°C (36°F)	47 mm (1.8 inches)	88%	moderate
December Weather	-2°C (28°F)	45 mm (1.8 inches)	82%	low