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September Weather in Silver Summit, United States

Last updated: June 24, 2025

In September, the average temperature in Silver Summit, United States hovers around 14°C (57°F), showcasing a delightful climate. However, be prepared for temperature fluctuations, as it can dip to a brisk -9°C (16°F) or soar to a warm 32°C (89°F). With an average precipitation of 43 mm (1.7 in) spread over 6 days, it's wise to pack an umbrella. The average humidity sits comfortably at 46%, providing just the right amount of moisture in the air.

September Temperature in Silver Summit

In September in Silver Summit, the average temperature is 14°C (57°F). Maximum temperatures can reach 32°C (89°F), while minimum temperatures can drop as low as -9°C (16°F). Be prepared for a wide range of weather conditions when planning your travel.

September Weather in Silver Summit: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Silver Summit, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Silver Summit, September typically has an average temperature of 14°C (57°F), with highs reaching up to 32°C (89°F) and lows dropping to around -9°C (16°F).
JanFebMarAprMayJunJulAugSepOctNovDec222433364660696657403121
Data source: Temperature data for Silver Summit 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 Silver Summit

In Silver Summit in September, the precipitation amount is 43 mm (1.7 in) over a period of 6 days.

September Precipitation Trends in Silver Summit

The chart displays monthly precipitation patterns in Silver Summit, 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 Silver Summit, September typically receives around 43 mm (1.7 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec809083767828263243555771
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Silver Summit

In Silver Summit in September, humidity is 46%. With an average temperature of 14°C (57°F), this humidity feels like a refreshing embrace, making it comfortable for exploring the sights and enjoying outdoor activities without feeling overly sticky or oppressive.

September Average Humidity in Silver Summit

This chart illustrates the average monthly humidity levels in Silver Summit, 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 Silver Summit is approximately 46%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%92%84%75%62%56%44%37%46%67%84%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Silver Summit

In Silver Summit in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Silver Summit.

Maximum UV Index Levels in Silver Summit for September

The chart shows the monthly maximum UV Index (UVI) for Silver Summit 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 Silver Summit typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46811111212119653
Data source: Silver Summit 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 Silver Summit Compares to Other Months

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

This table compares monthly weather conditions in Silver Summit, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (23°F)80 mm (3.1 inches)91%moderate
February Weather-4°C (25°F)90 mm (3.5 inches)92%high
March Weather0°C (33°F)83 mm (3.3 inches)84%very high
April Weather2°C (36°F)76 mm (3.0 inches)74%extreme
May Weather8°C (46°F)78 mm (3.1 inches)62%extreme
June Weather15°C (60°F)28 mm (1.1 inches)56%extreme
July Weather20°C (69°F)26 mm (1.0 inches)44%extreme
August Weather19°C (66°F)32 mm (1.2 inches)37%extreme
September Weather14°C (57°F)43 mm (1.7 inches)46%very high
October Weather5°C (40°F)55 mm (2.2 inches)67%high
November Weather-1°C (31°F)57 mm (2.2 inches)84%moderate
December Weather-6°C (22°F)71 mm (2.8 inches)88%moderate

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