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September Weather in Conneaut Lake, United States

Last updated: June 24, 2025

In September, the average temperature in Conneaut Lake, United States hovers around 18°C (65°F), with a minimum dip to 3°C (38°F) and a maximum rise to 32°C (90°F). Expect about 100 mm (3.9 in) of precipitation spread over 10 days, contributing to an average humidity level of 77%. Plan accordingly for a mix of warmth and moisture!

September Temperature in Conneaut Lake

In September in Conneaut Lake, the average temperature is 18°C (65°F). Maximum temperatures can reach 32°C (90°F), while minimums can drop as low as 3°C (38°F). Be prepared for a range of weather conditions when traveling during this time.

September Weather in Conneaut Lake: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Conneaut Lake, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Conneaut Lake, September typically has an average temperature of 18°C (65°F), with highs reaching up to 32°C (90°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec273037475967727065554033
Data source: Temperature data for Conneaut Lake 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 Conneaut Lake

In Conneaut Lake in September, the precipitation amount is 100 mm (3.9 in) over a span of 10 days.

September Precipitation Trends in Conneaut Lake

The chart displays monthly precipitation patterns in Conneaut Lake, 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 Conneaut Lake, September typically receives around 100 mm (3.9 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec102108115139149140140106100127111108
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Conneaut Lake

In Conneaut Lake in September humidity is 77%. With an average temperature of 18°C (65°F), this humidity feels like a warm embrace that's both refreshing and slightly stifling, making it essential for travelers to stay hydrated and take frequent breaks to enjoy the vibrant surroundings without feeling overly fatigued.

September Average Humidity in Conneaut Lake

This chart illustrates the average monthly humidity levels in Conneaut Lake, 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 Conneaut Lake 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 Conneaut Lake

In Conneaut Lake 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 Conneaut Lake.

Maximum UV Index Levels in Conneaut Lake for September

The chart shows the monthly maximum UV Index (UVI) for Conneaut Lake 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 Conneaut Lake typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346910101098642
Data source: Conneaut Lake 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 Conneaut Lake Compares to Other Months

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

This table compares monthly weather conditions in Conneaut Lake, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (28°F)102 mm (4.0 inches)88%moderate
February Weather-1°C (31°F)108 mm (4.3 inches)88%moderate
March Weather3°C (38°F)115 mm (4.5 inches)87%high
April Weather9°C (48°F)139 mm (5.5 inches)87%very high
May Weather15°C (59°F)149 mm (5.9 inches)81%very high
June Weather20°C (68°F)139 mm (5.5 inches)83%very high
July Weather22°C (72°F)140 mm (5.5 inches)82%very high
August Weather21°C (70°F)106 mm (4.2 inches)76%very high
September Weather18°C (65°F)100 mm (3.9 inches)77%very high
October Weather13°C (55°F)127 mm (5.0 inches)82%high
November Weather4°C (40°F)111 mm (4.4 inches)89%moderate
December Weather1°C (34°F)107 mm (4.2 inches)86%low

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