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September Weather in White Plains, United States

Last updated: June 24, 2025

In September, the average temperature in White Plains, United States is a pleasant 23°C (74°F). However, temperatures can vary significantly, with a minimum of 9°C (48°F) and a maximum reaching 37°C (99°F). With an average humidity of 75%, expect a moderate and sometimes humid climate. Additionally, precipitation averages around 95 mm (3.7 in) over the course of 7 days, so be prepared for occasional rain while enjoying the warm weather!

September Temperature in White Plains

In September in White Plains, the average temperature is 23°C (74°F). Maximum temperatures can reach 37°C (99°F), while minimums can drop to as low as 9°C (48°F). This range makes it a great time for travelers to prepare for both warm days and cooler evenings.

September Weather in White Plains: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in White Plains, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In White Plains, September typically has an average temperature of 23°C (74°F), with highs reaching up to 37°C (99°F) and lows dropping to around 9°C (48°F).
JanFebMarAprMayJunJulAugSepOctNovDec374150586977817874624743
Data source: Temperature data for White Plains 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 White Plains

In White Plains in September, the precipitation amount is 95 mm (3.7 in) over the course of 7 days.

September Precipitation Trends in White Plains

The chart displays monthly precipitation patterns in White Plains, 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 White Plains, September typically receives around 95 mm (3.7 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec921461221451181251071039510886107
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in White Plains

In White Plains in September, humidity is 75%. With an average temperature of 23°C (74°F), this humidity feels like a warm, heavy blanket wrapping around you, making it feel more sweltering than it actually is, which can be quite uncomfortable for traveling.

September Average Humidity in White Plains

This chart illustrates the average monthly humidity levels in White Plains, 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 White Plains is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%84%84%80%82%83%80%76%75%75%85%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in White Plains

In White Plains 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 White Plains.

Maximum UV Index Levels in White Plains for September

The chart shows the monthly maximum UV Index (UVI) for White Plains 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 White Plains typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36710101110109753
Data source: White Plains 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 White Plains Compares to Other Months

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

This table compares monthly weather conditions in White Plains, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (38°F)92 mm (3.6 inches)86%moderate
February Weather5°C (42°F)146 mm (5.8 inches)84%high
March Weather10°C (51°F)122 mm (4.8 inches)84%high
April Weather14°C (58°F)145 mm (5.7 inches)80%very high
May Weather21°C (70°F)118 mm (4.7 inches)82%very high
June Weather25°C (77°F)125 mm (4.9 inches)83%extreme
July Weather27°C (81°F)107 mm (4.2 inches)79%very high
August Weather25°C (78°F)103 mm (4.1 inches)76%very high
September Weather23°C (74°F)95 mm (3.7 inches)75%very high
October Weather17°C (62°F)108 mm (4.3 inches)74%high
November Weather8°C (47°F)86 mm (3.4 inches)85%moderate
December Weather6°C (43°F)107 mm (4.2 inches)88%moderate

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