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September Weather in Wooster, United States

Last updated: June 24, 2025

In September, the average temperature in Wooster, United States is a pleasant 20°C (68°F). Daily highs can reach a balmy 34°C (93°F), while lows dip to around 5°C (41°F). Expect 92 mm (3.6 in) of precipitation over approximately 10 days, accompanied by a moderate average humidity of 77%. This blend of warmth and moisture makes for a characteristic climate in Wooster during this time of year.

September Temperature in Wooster

In September in Wooster, the average temperature is 20°C (68°F). Maximums can reach 34°C (93°F) and minimums can be as low as 5°C (41°F). Travelers should be prepared for warm days and cool nights, making layering essentials for this time of year.

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

The chart illustrates September temperature patterns in Wooster, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Wooster, September typically has an average temperature of 20°C (68°F), with highs reaching up to 34°C (93°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec303341506271757368574135
Data source: Temperature data for Wooster 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 Wooster

In Wooster in September, the total precipitation amount is 92 mm (3.6 in), which falls over the course of 10 days.

September Precipitation Trends in Wooster

The chart displays monthly precipitation patterns in Wooster, 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 Wooster, September typically receives around 92 mm (3.6 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec81969913111611911782921029090
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Wooster

In Wooster in September, humidity is 77%. With an average temperature of 20°C (68°F), this humidity feels like a warm, sticky embrace, making it essential for travelers to stay hydrated and take breaks in shaded areas to avoid feeling sluggish in the heat.

September Average Humidity in Wooster

This chart illustrates the average monthly humidity levels in Wooster, 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 Wooster is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%87%87%81%83%82%76%77%82%89%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Wooster

In Wooster 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 Wooster.

Maximum UV Index Levels in Wooster for September

The chart shows the monthly maximum UV Index (UVI) for Wooster 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 Wooster typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098642
Data source: Wooster 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 Wooster Compares to Other Months

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

This table compares monthly weather conditions in Wooster, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)80 mm (3.2 inches)88%moderate
February Weather0°C (33°F)96 mm (3.8 inches)88%moderate
March Weather5°C (41°F)99 mm (3.9 inches)87%high
April Weather10°C (51°F)131 mm (5.1 inches)87%very high
May Weather17°C (63°F)116 mm (4.6 inches)81%very high
June Weather22°C (71°F)119 mm (4.7 inches)83%very high
July Weather24°C (75°F)117 mm (4.6 inches)82%very high
August Weather23°C (73°F)82 mm (3.2 inches)76%very high
September Weather20°C (68°F)92 mm (3.6 inches)77%very high
October Weather14°C (57°F)102 mm (4.0 inches)82%high
November Weather5°C (41°F)90 mm (3.6 inches)89%moderate
December Weather2°C (35°F)90 mm (3.6 inches)86%low

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