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September Weather in Stone Ridge, United States

Last updated: June 24, 2025

In September, the average temperature in Stone Ridge, United States hovers around 18°C (65°F), offering a pleasant climate perfect for exploration. Expect minimums as low as 2°C (37°F) and highs reaching up to 32°C (89°F), providing a diverse range of weather. Prepare for some occasional rain, with precipitation totaling 103 mm (4.1 in) over about 9 days. On top of that, the average humidity is around 68%, adding a touch of freshness to the air.

September Temperature in Stone Ridge

In September in Stone Ridge, the average temperature is 18°C (65°F). Maximums can reach 32°C (89°F), while minimums can dip as low as 2°C (37°F). This diverse temperature range makes Stone Ridge an ideal destination for travelers seeking both warm days and cool evenings.

September Weather in Stone Ridge: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Stone Ridge, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Stone Ridge, September typically has an average temperature of 18°C (65°F), with highs reaching up to 32°C (89°F) and lows dropping to around 2°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec293137485968737265554133
Data source: Temperature data for Stone Ridge 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 Stone Ridge

In Stone Ridge in September, the precipitation amount is 103 mm (4.1 in) distributed over 9 days.

September Precipitation Trends in Stone Ridge

The chart displays monthly precipitation patterns in Stone Ridge, 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 Stone Ridge, September typically receives around 103 mm (4.1 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec7910496141131106137128103155100113
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Stone Ridge

In Stone Ridge in September, humidity is 68%. With an average temperature of 18°C (65°F), this humidity feels like a warm, enveloping blanket, making travel somewhat sticky and requiring occasional breaks for refreshing hydration.

September Average Humidity in Stone Ridge

This chart illustrates the average monthly humidity levels in Stone Ridge, 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 Stone Ridge 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 Stone Ridge

In Stone Ridge 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 Stone Ridge.

Maximum UV Index Levels in Stone Ridge for September

The chart shows the monthly maximum UV Index (UVI) for Stone Ridge 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 Stone Ridge typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356810101098642
Data source: Stone Ridge 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 Stone Ridge Compares to Other Months

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

This table compares monthly weather conditions in Stone Ridge, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)79 mm (3.1 inches)84%moderate
February Weather0°C (31°F)104 mm (4.1 inches)82%moderate
March Weather3°C (37°F)96 mm (3.8 inches)81%high
April Weather9°C (48°F)141 mm (5.5 inches)78%very high
May Weather15°C (59°F)131 mm (5.1 inches)69%very high
June Weather20°C (68°F)106 mm (4.2 inches)69%very high
July Weather23°C (74°F)137 mm (5.4 inches)62%very high
August Weather22°C (72°F)128 mm (5.0 inches)65%very high
September Weather18°C (65°F)103 mm (4.1 inches)68%very high
October Weather13°C (55°F)155 mm (6.1 inches)74%high
November Weather5°C (41°F)100 mm (3.9 inches)82%moderate
December Weather1°C (33°F)112 mm (4.4 inches)80%low

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