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September Weather in Sterling City, United States

Last updated: June 24, 2025

In September, the average temperature in Sterling City, United States is a pleasant 25°C (77°F). Visitors can expect a range, with temperatures dipping as low as 7°C (44°F) and soaring to 39°C (102°F). During this time, precipitation averages 65 mm (2.6 in) over about 5 days, creating a 67% humidity level that adds a touch of warmth to the air. Whether you’re exploring outdoor activities or relaxing indoors, Sterling City offers a diverse climate for every preference!

September Temperature in Sterling City

In September in Sterling City, the average temperature is 25°C (77°F). Maximums can reach 39°C (102°F), and minimums can drop as low as 7°C (44°F). This makes it a great time to visit for those who enjoy warm days and cool evenings.

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

The chart illustrates September temperature patterns in Sterling City, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sterling City, September typically has an average temperature of 25°C (77°F), with highs reaching up to 39°C (102°F) and lows dropping to around 7°C (44°F).
JanFebMarAprMayJunJulAugSepOctNovDec464859667581848377665550
Data source: Temperature data for Sterling City 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 Sterling City

In Sterling City, in September, the precipitation amount is 65 mm (2.6 in) over a period of 5 days.

September Precipitation Trends in Sterling City

The chart displays monthly precipitation patterns in Sterling City, 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 Sterling City, September typically receives around 65 mm (2.6 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec222243568654244065552923
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Sterling City

In Sterling City in September, humidity is 67%. With an average temperature of 25°C (77°F), this humidity feels like traveling through a warm, heavy blanket, making outdoor activities feel more strenuous and sticky than usual.

September Average Humidity in Sterling City

This chart illustrates the average monthly humidity levels in Sterling City, 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 Sterling City is approximately 67%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec74%74%69%70%77%76%66%60%67%72%84%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Sterling City

In Sterling City in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Sterling City.

Maximum UV Index Levels in Sterling City for September

The chart shows the monthly maximum UV Index (UVI) for Sterling City 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 Sterling City typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec579111212121211865
Data source: Sterling City 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 Sterling City Compares to Other Months

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

This table compares monthly weather conditions in Sterling City, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (46°F)22 mm (0.9 inches)74%moderate
February Weather9°C (49°F)22 mm (0.9 inches)74%high
March Weather15°C (60°F)43 mm (1.7 inches)68%very high
April Weather19°C (66°F)56 mm (2.2 inches)70%extreme
May Weather24°C (75°F)86 mm (3.4 inches)77%extreme
June Weather27°C (81°F)54 mm (2.1 inches)76%extreme
July Weather29°C (84°F)24 mm (1.0 inches)66%extreme
August Weather28°C (83°F)40 mm (1.6 inches)60%extreme
September Weather25°C (77°F)65 mm (2.6 inches)67%extreme
October Weather19°C (67°F)55 mm (2.2 inches)72%very high
November Weather13°C (56°F)29 mm (1.1 inches)83%high
December Weather10°C (50°F)23 mm (0.9 inches)85%moderate

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