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September Weather in Channahon, United States

Last updated: June 24, 2025

In Channahon, United States, the average temperature in September hovers around 20°C (68°F). However, be prepared for temperature swings, as it can drop to a chilly 3°C (38°F) or soar up to a sweltering 34°C (94°F). With 85 mm (3.3 in) of precipitation spread over 9 days, you'll want to keep an umbrella handy. Don't forget, the average humidity sits at a balmy 80%, adding to the local charm!

September Temperature in Channahon

In September in Channahon, the average temperature is 20°C (68°F). Maximum temperatures can reach 34°C (94°F), while minimums can dip as low as 3°C (38°F). Overall, it's an ideal time for travelers to enjoy a mix of warm days and cool nights in Channahon.

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

The chart illustrates September temperature patterns in Channahon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Channahon, September typically has an average temperature of 20°C (68°F), with highs reaching up to 34°C (94°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec262840496272767368553933
Data source: Temperature data for Channahon 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 Channahon

In Channahon in September, the precipitation amount is 85 mm (3.3 in) over the course of 9 days.

September Precipitation Trends in Channahon

The chart displays monthly precipitation patterns in Channahon, 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 Channahon, September typically receives around 85 mm (3.3 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec64658911915713711180851355954
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Channahon

In Channahon in September, humidity is 80%. With an average temperature of 20°C (68°F), this humidity feels like traveling through a warm, dense blanket that clings to your skin, making you feel both sticky and lethargic as you explore the sights.

September Average Humidity in Channahon

This chart illustrates the average monthly humidity levels in Channahon, 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 Channahon is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%83%84%85%79%82%80%81%80%82%88%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Channahon

In Channahon 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 Channahon.

Maximum UV Index Levels in Channahon for September

The chart shows the monthly maximum UV Index (UVI) for Channahon 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 Channahon typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34689101098642
Data source: Channahon 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 Channahon Compares to Other Months

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

This table compares monthly weather conditions in Channahon, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (26°F)64 mm (2.5 inches)82%moderate
February Weather-2°C (28°F)65 mm (2.6 inches)83%moderate
March Weather4°C (40°F)89 mm (3.5 inches)84%high
April Weather10°C (49°F)119 mm (4.7 inches)85%very high
May Weather17°C (62°F)156 mm (6.2 inches)79%very high
June Weather22°C (73°F)137 mm (5.4 inches)82%very high
July Weather24°C (76°F)111 mm (4.4 inches)80%very high
August Weather23°C (74°F)80 mm (3.2 inches)81%very high
September Weather20°C (68°F)85 mm (3.3 inches)80%very high
October Weather13°C (55°F)135 mm (5.3 inches)82%high
November Weather4°C (40°F)59 mm (2.3 inches)88%moderate
December Weather1°C (34°F)54 mm (2.1 inches)84%low

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