September Weather in Mount Sterling, United States

Last updated: June 24, 2025

In Mount Sterling, United States, the average temperature in September hovers around 21°C (69°F), making it a mild and pleasant time to visit. However, temperatures can fluctuate, with a minimum of 5°C (42°F) and a peak of 35°C (95°F). Be prepared for some rain, as 95 mm (3.7 in) of precipitation typically falls across 7 days. With an average humidity of 73%, the air can feel quite moist, adding to the region's unique climate charm.

September Temperature in Mount Sterling

In September in Mount Sterling, the average temperature is 21°C (69°F). Maximum temperatures can reach 35°C (95°F), while minimum temperatures can drop as low as 5°C (42°F). This diverse temperature range makes Mount Sterling an ideal destination for travelers seeking both warmth during the day and cooler evenings.

September Weather in Mount Sterling: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Mount Sterling, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mount Sterling, September typically has an average temperature of 21°C (69°F), with highs reaching up to 35°C (95°F) and lows dropping to around 5°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec313543526472767369584237
Data source: Temperature data for Mount Sterling 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 Mount Sterling

In Mount Sterling in September, the precipitation amount is 95 mm (3.7 in) over the course of 7 days.

September Precipitation Trends in Mount Sterling

The chart displays monthly precipitation patterns in Mount Sterling, 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 Mount Sterling, September typically receives around 95 mm (3.7 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec7710911711812714411695959795101
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Mount Sterling

In Mount Sterling in September, humidity is 73%. With an average temperature of 21°C (69°F), this humidity feels like a warm, sticky embrace, making outdoor activities somewhat stifling and travel a bit more challenging, as the air is dense and can leave you feeling fatigued more quickly.

September Average Humidity in Mount Sterling

This chart illustrates the average monthly humidity levels in Mount Sterling, 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 Mount Sterling is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%87%85%81%82%81%73%73%78%89%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Mount Sterling

In Mount Sterling 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 Mount Sterling.

Maximum UV Index Levels in Mount Sterling for September

The chart shows the monthly maximum UV Index (UVI) for Mount Sterling 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 Mount Sterling typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098643
Data source: Mount Sterling 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 Mount Sterling Compares to Other Months

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

This table compares monthly weather conditions in Mount Sterling, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)77 mm (3.0 inches)88%moderate
February Weather2°C (35°F)109 mm (4.3 inches)88%moderate
March Weather6°C (43°F)117 mm (4.6 inches)87%high
April Weather11°C (53°F)118 mm (4.6 inches)85%very high
May Weather18°C (64°F)127 mm (5.0 inches)81%very high
June Weather22°C (72°F)144 mm (5.7 inches)82%very high
July Weather24°C (76°F)116 mm (4.6 inches)81%very high
August Weather23°C (74°F)95 mm (3.7 inches)73%very high
September Weather21°C (69°F)95 mm (3.7 inches)73%very high
October Weather14°C (58°F)97 mm (3.8 inches)78%high
November Weather6°C (43°F)95 mm (3.7 inches)89%moderate
December Weather3°C (37°F)101 mm (4.0 inches)87%moderate

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