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September Weather in Silverton, United States

Last updated: June 24, 2025

In Silverton, United States, the average temperature in September is a pleasant 17°C (63°F), with highs reaching up to 35°C (95°F) and lows dipping to 4°C (39°F). Expect about 90 mm (3.5 in) of precipitation over 7 days, contributing to an average humidity of 71%. Enjoy the diverse weather this month has to offer!

September Temperature in Silverton

In September in Silverton, the average temperature is 17°C (63°F). Maximum temperatures can reach 35°C (95°F), while minimums can dip as low as 4°C (39°F). This varied climate makes Silverton an ideal destination for travelers looking to experience a mix of warm days and cooler nights.

September Weather in Silverton: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Silverton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Silverton, September typically has an average temperature of 17°C (63°F), with highs reaching up to 35°C (95°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec414045505663697063524641
Data source: Temperature data for Silverton 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 Silverton

In Silverton in September, the precipitation amount is 90 mm (3.5 in) over the course of 7 days.

September Precipitation Trends in Silverton

The chart displays monthly precipitation patterns in Silverton, 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 Silverton, September typically receives around 90 mm (3.5 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec18522516114971605790140181224
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Silverton

In Silverton in September, humidity is 71%. With an average temperature of 17°C (63°F), this humidity feels like a warm embrace, making outdoor activities enjoyable yet a bit sticky, so travelers should stay hydrated and take breaks in the shade.

September Average Humidity in Silverton

This chart illustrates the average monthly humidity levels in Silverton, 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 Silverton is approximately 71%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%84%85%83%83%84%82%74%71%81%87%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Silverton

In Silverton in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Silverton.

Maximum UV Index Levels in Silverton for September

The chart shows the monthly maximum UV Index (UVI) for Silverton 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 Silverton typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec23579101097532
Data source: Silverton 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 Silverton Compares to Other Months

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

This table compares monthly weather conditions in Silverton, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (42°F)185 mm (7.3 inches)85%low
February Weather5°C (41°F)225 mm (8.8 inches)84%moderate
March Weather7°C (45°F)161 mm (6.3 inches)85%moderate
April Weather10°C (50°F)149 mm (5.9 inches)83%high
May Weather14°C (57°F)71 mm (2.8 inches)83%very high
June Weather17°C (63°F)60 mm (2.4 inches)83%very high
July Weather21°C (69°F)5 mm (0.2 inches)82%very high
August Weather21°C (70°F)7 mm (0.3 inches)74%very high
September Weather17°C (63°F)90 mm (3.5 inches)71%high
October Weather11°C (53°F)140 mm (5.5 inches)81%moderate
November Weather8°C (46°F)181 mm (7.1 inches)87%moderate
December Weather5°C (41°F)224 mm (8.8 inches)87%low

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