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September Weather in Willow Street, United States

Last updated: June 24, 2025

In September, the average temperature in Willow Street, United States is a comfortable 21°C (70°F). However, be prepared for temperature fluctuations; it can drop as low as 5°C (42°F) and soar to a maximum of 34°C (93°F). During this month, expect 106 mm (4.2 in) of precipitation over about 10 days, contributing to an average humidity level of 75%. Stay ready for a mix of warmth and occasional rain!

September Temperature in Willow Street

In September in Willow Street, the average temperature is 21°C (70°F), with maximums reaching 34°C (93°F) and minimums dropping as low as 5°C (42°F). This range makes Willow Street a perfect destination for travelers seeking both warm days and cooler evenings.

September Weather in Willow Street: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Willow Street, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Willow Street, September typically has an average temperature of 21°C (70°F), with highs reaching up to 34°C (93°F) and lows dropping to around 5°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec343843546473787670604538
Data source: Temperature data for Willow Street 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 Willow Street

In Willow Street in September, the precipitation amount is 106 mm (4.2 in) over a span of 10 days.

September Precipitation Trends in Willow Street

The chart displays monthly precipitation patterns in Willow Street, 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 Willow Street, September typically receives around 106 mm (4.2 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec6210310297128100135138106998997
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Willow Street

In Willow Street in September, humidity is 75%. With an average temperature of 21°C (70°F), this humidity feels like a warm, enveloping blanket that makes exploring the area feel slightly sticky, requiring travelers to stay hydrated and take occasional breaks in the shade to fully enjoy their adventures.

September Average Humidity in Willow Street

This chart illustrates the average monthly humidity levels in Willow Street, 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 Willow Street is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%83%83%81%78%79%74%72%75%81%85%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Willow Street

In Willow Street 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 Willow Street.

Maximum UV Index Levels in Willow Street for September

The chart shows the monthly maximum UV Index (UVI) for Willow Street 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 Willow Street typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098642
Data source: Willow Street 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 Willow Street Compares to Other Months

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

This table compares monthly weather conditions in Willow Street, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (35°F)62 mm (2.4 inches)84%moderate
February Weather3°C (38°F)103 mm (4.0 inches)83%moderate
March Weather6°C (43°F)102 mm (4.0 inches)83%high
April Weather12°C (54°F)97 mm (3.8 inches)81%very high
May Weather18°C (64°F)128 mm (5.0 inches)78%very high
June Weather23°C (73°F)100 mm (3.9 inches)79%very high
July Weather26°C (78°F)135 mm (5.3 inches)74%very high
August Weather24°C (76°F)138 mm (5.4 inches)72%very high
September Weather21°C (70°F)106 mm (4.2 inches)75%very high
October Weather15°C (60°F)99 mm (3.9 inches)81%high
November Weather7°C (45°F)89 mm (3.5 inches)85%moderate
December Weather3°C (39°F)96 mm (3.8 inches)84%low

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