September Weather in Schenectady, United States

Last updated: June 24, 2025

In September, the average temperature in Schenectady, United States hovers around 18°C (64°F). Expect a minimum chill of 1°C (35°F) and warm highs reaching 32°C (91°F). During this month, you can anticipate 109 mm (4.3 in) of precipitation spread over about 9 days, accompanied by an average humidity level of 72%.

September Temperature in Schenectady

In September in Schenectady, the average temperature is 18°C (64°F). Maximum temperatures can reach 32°C (91°F), while minimums can drop as low as 1°C (35°F). Overall, it's a great time to visit Schenectady, as you can experience a pleasant mix of warm and cooler days perfect for exploring.

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

The chart illustrates September temperature patterns in Schenectady, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Schenectady, September typically has an average temperature of 18°C (64°F), with highs reaching up to 32°C (91°F) and lows dropping to around 1°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec262835475967737164533931
Data source: Temperature data for Schenectady 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 Schenectady

In Schenectady in September, the total precipitation amount is 109 mm (4.3 in) spread over 9 days.

September Precipitation Trends in Schenectady

The chart displays monthly precipitation patterns in Schenectady, 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 Schenectady, September typically receives around 109 mm (4.3 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec7392811311061171521251091489696
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Schenectady

In Schenectady in September, humidity is 72%. With an average temperature of 18°C (64°F), this humidity feels like a warm, sticky embrace, making travel somewhat uncomfortable as the air clings to your skin, leaving you longing for a refreshing breeze.

September Average Humidity in Schenectady

This chart illustrates the average monthly humidity levels in Schenectady, 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 Schenectady is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%88%86%84%76%72%67%64%72%81%87%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Schenectady

In Schenectady 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 Schenectady.

Maximum UV Index Levels in Schenectady for September

The chart shows the monthly maximum UV Index (UVI) for Schenectady 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 Schenectady typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3468910997632
Data source: Schenectady 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 Schenectady Compares to Other Months

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

This table compares monthly weather conditions in Schenectady, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (26°F)73 mm (2.9 inches)89%moderate
February Weather-2°C (29°F)92 mm (3.6 inches)88%moderate
March Weather2°C (35°F)81 mm (3.2 inches)86%high
April Weather8°C (47°F)131 mm (5.2 inches)84%very high
May Weather15°C (59°F)106 mm (4.2 inches)76%very high
June Weather20°C (68°F)117 mm (4.6 inches)72%very high
July Weather23°C (73°F)152 mm (6.0 inches)66%very high
August Weather22°C (71°F)125 mm (4.9 inches)64%very high
September Weather18°C (64°F)109 mm (4.3 inches)72%high
October Weather12°C (53°F)148 mm (5.8 inches)81%high
November Weather4°C (39°F)96 mm (3.8 inches)87%moderate
December Weather-1°C (31°F)96 mm (3.8 inches)84%low

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