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September Weather in Chippewa Falls, United States

Last updated: June 24, 2025

In September, the average temperature in Chippewa Falls, United States hovers around 17°C (63°F). Expect a minimum of 0°C (33°F) and a maximum that can soar to 32°C (91°F). With an average humidity of 80% and 94 mm (3.7 in) of precipitation spread over 10 days, this month presents a mix of cool and warm days, making it a dynamic time to experience the local climate!

September Temperature in Chippewa Falls

In September in Chippewa Falls, the average temperature is 17°C (63°F). Maximums can reach 32°C (91°F), and minimums can be as low as 0°C (33°F). This varied climate makes it essential for travelers to pack a range of clothing options to stay comfortable throughout their visit.

September Weather in Chippewa Falls: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Chippewa Falls, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chippewa Falls, September typically has an average temperature of 17°C (63°F), with highs reaching up to 32°C (91°F) and lows dropping to around 0°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec161732435869726963483223
Data source: Temperature data for Chippewa Falls generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Chippewa Falls

In Chippewa Falls in September, the precipitation amount is 94 mm (3.7 in) over a duration of 10 days.

September Precipitation Trends in Chippewa Falls

The chart displays monthly precipitation patterns in Chippewa Falls, 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 Chippewa Falls, September typically receives around 94 mm (3.7 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec32465591126121121120951124857
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Chippewa Falls

In Chippewa Falls in September humidity is 80%. With an average temperature of 17°C (63°F), this humidity feels like you're walking through a thick, warm blanket, making travel feel slightly stifling and requiring frequent breaks to stay comfortable.

September Average Humidity in Chippewa Falls

This chart illustrates the average monthly humidity levels in Chippewa Falls, 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 Chippewa Falls is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%89%86%85%79%80%80%78%80%84%89%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Chippewa Falls

In Chippewa Falls in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Chippewa Falls.

Maximum UV Index Levels in Chippewa Falls for September

The chart shows the monthly maximum UV Index (UVI) for Chippewa Falls 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 Chippewa Falls typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2457910997532
Data source: Chippewa Falls 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 Chippewa Falls Compares to Other Months

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

This table compares monthly weather conditions in Chippewa Falls, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-9°C (17°F)32 mm (1.3 inches)88%low
February Weather-8°C (17°F)46 mm (1.8 inches)89%moderate
March Weather0°C (33°F)55 mm (2.2 inches)86%moderate
April Weather6°C (43°F)91 mm (3.6 inches)85%high
May Weather14°C (58°F)126 mm (5.0 inches)79%very high
June Weather21°C (69°F)121 mm (4.8 inches)80%very high
July Weather22°C (73°F)121 mm (4.8 inches)80%very high
August Weather20°C (69°F)120 mm (4.7 inches)78%very high
September Weather17°C (63°F)94 mm (3.7 inches)80%high
October Weather9°C (48°F)112 mm (4.4 inches)84%moderate
November Weather0°C (33°F)48 mm (1.9 inches)89%moderate
December Weather-5°C (23°F)57 mm (2.2 inches)85%low

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