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September Weather in Le Roy, United States

Last updated: June 24, 2025

In September, the average temperature in Le Roy, United States hovers around 18°C (64°F), with a range that can dip to a chilly 1°C (35°F) and soar to a warm 33°C (91°F). Expect 113 mm (4.5 in) of precipitation spread over 9 days, contributing to an average humidity of 75%. This combination makes for a diverse and dynamic climate experience!

September Temperature in Le Roy

In September in Le Roy, the average temperature is 18°C (64°F). Maximums can reach 33°C (91°F), and minimums can be as low as 1°C (35°F). Travelers should be prepared for a range of temperatures and pack accordingly for both warm days and cooler evenings.

September Weather in Le Roy: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Le Roy, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Le Roy, September typically has an average temperature of 18°C (64°F), with highs reaching up to 33°C (91°F) and lows dropping to around 1°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec181834445971737064483426
Data source: Temperature data for Le Roy 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 Le Roy

In Le Roy in September, the precipitation amount is 113 mm (4.5 in) over a span of 9 days.

September Precipitation Trends in Le Roy

The chart displays monthly precipitation patterns in Le Roy, 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 Le Roy, September typically receives around 113 mm (4.5 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec36486481152131931031131235238
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Le Roy

In Le Roy in September, humidity is 75%. With an average temperature of 18°C (64°F), this humidity feels like a warm blanket enveloping you, making your travels a bit sticky and requiring frequent breaks in the shade to stay comfortable.

September Average Humidity in Le Roy

This chart illustrates the average monthly humidity levels in Le Roy, 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 Le Roy is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%84%80%81%74%81%80%77%75%80%87%83%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Le Roy

In Le Roy 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 Le Roy.

Maximum UV Index Levels in Le Roy for September

The chart shows the monthly maximum UV Index (UVI) for Le Roy 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 Le Roy typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35589101098532
Data source: Le Roy 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 Le Roy Compares to Other Months

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

This table compares monthly weather conditions in Le Roy, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (18°F)36 mm (1.4 inches)82%moderate
February Weather-8°C (18°F)48 mm (1.9 inches)84%moderate
March Weather1°C (34°F)64 mm (2.5 inches)80%moderate
April Weather7°C (44°F)81 mm (3.2 inches)81%very high
May Weather15°C (59°F)151 mm (6.0 inches)74%very high
June Weather21°C (71°F)131 mm (5.2 inches)80%very high
July Weather23°C (73°F)93 mm (3.6 inches)80%very high
August Weather21°C (70°F)103 mm (4.1 inches)77%very high
September Weather18°C (64°F)113 mm (4.5 inches)75%very high
October Weather9°C (49°F)123 mm (4.8 inches)80%moderate
November Weather1°C (34°F)52 mm (2.0 inches)87%moderate
December Weather-3°C (26°F)38 mm (1.5 inches)83%low

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