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September Weather in Salmon Brook, United States

Last updated: June 24, 2025

In September, the average temperature in Salmon Brook, United States hovers around 19°C (66°F). Expect a minimum of 3°C (38°F) and a potential maximum of 33°C (92°F), giving you a range perfect for various activities. During the month, anticipate 114 mm (4.5 in) of precipitation spread over 9 days, and enjoy a comfortable average humidity of 68%.

September Temperature in Salmon Brook

In September in Salmon Brook, the average temperature is 19°C (66°F). Maximum temperatures can reach 33°C (92°F), while minimums can dip as low as 3°C (38°F). This variety in weather makes Salmon Brook an ideal destination for travelers seeking both warm and cool experiences.

September Weather in Salmon Brook: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Salmon Brook, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Salmon Brook, September typically has an average temperature of 19°C (66°F), with highs reaching up to 33°C (92°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec303238485969747366564233
Data source: Temperature data for Salmon Brook 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 Salmon Brook

In Salmon Brook in September, the precipitation amount is 114 mm (4.5 in) over the course of 9 days.

September Precipitation Trends in Salmon Brook

The chart displays monthly precipitation patterns in Salmon Brook, 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 Salmon Brook, September typically receives around 114 mm (4.5 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec739187139116831439411414592121
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Salmon Brook

In Salmon Brook in September humidity is 68%. With an average temperature of 19°C (66°F), this humidity feels like a warm embrace, creating a sticky atmosphere that can be a bit uncomfortable for traveling.

September Average Humidity in Salmon Brook

This chart illustrates the average monthly humidity levels in Salmon Brook, 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 Salmon Brook is approximately 68%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%81%78%70%69%62%65%68%74%82%80%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Salmon Brook

In Salmon Brook 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 Salmon Brook.

Maximum UV Index Levels in Salmon Brook for September

The chart shows the monthly maximum UV Index (UVI) for Salmon Brook 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 Salmon Brook typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35681010998642
Data source: Salmon Brook 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 Salmon Brook Compares to Other Months

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

This table compares monthly weather conditions in Salmon Brook, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)73 mm (2.9 inches)84%moderate
February Weather0°C (32°F)91 mm (3.6 inches)82%moderate
March Weather3°C (38°F)87 mm (3.4 inches)81%high
April Weather9°C (49°F)138 mm (5.5 inches)78%very high
May Weather15°C (60°F)116 mm (4.6 inches)69%very high
June Weather20°C (69°F)83 mm (3.3 inches)69%very high
July Weather23°C (74°F)143 mm (5.6 inches)62%very high
August Weather23°C (73°F)94 mm (3.7 inches)65%very high
September Weather19°C (66°F)114 mm (4.5 inches)68%very high
October Weather13°C (56°F)145 mm (5.7 inches)74%high
November Weather5°C (42°F)92 mm (3.6 inches)82%moderate
December Weather1°C (34°F)121 mm (4.8 inches)80%low

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