September Weather in Williamsfield, United States

Last updated: June 24, 2025

In September, the average temperature in Williamsfield, United States is a pleasant 21°C (69°F). Expect some variability, with minimum temperatures dipping to 5°C (42°F) and highs reaching up to 35°C (95°F). During this time, 91 mm (3.6 in) of precipitation is anticipated over approximately 9 days, contributing to an average humidity of 78%. Whether you're basking in the warmth or preparing for a shower, it's a month rich with climate diversity!

September Temperature in Williamsfield

In September in Williamsfield, the average temperature is 21°C (69°F). Maximum temperatures can reach 35°C (95°F), while minimum temperatures can drop as low as 5°C (42°F). This diverse temperature range makes Williamsfield an ideal destination for travelers seeking both warmth during the day and cooler evenings.

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

The chart illustrates September temperature patterns in Williamsfield, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Williamsfield, September typically has an average temperature of 21°C (69°F), with highs reaching up to 35°C (95°F) and lows dropping to around 5°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec252841506373777469553933
Data source: Temperature data for Williamsfield 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 Williamsfield

In Williamsfield in September, the precipitation amount is 91 mm (3.6 in) spread over 9 days.

September Precipitation Trends in Williamsfield

The chart displays monthly precipitation patterns in Williamsfield, 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 Williamsfield, September typically receives around 91 mm (3.6 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec576610511315915910668911265451
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Williamsfield

In Williamsfield in September, humidity is 78%. With an average temperature of 21°C (69°F), this humidity feels like a warm embrace that clings to your skin, making outdoor activities feel more intense and leaving you yearning for refreshing breezes or a cool drink as you explore.

September Average Humidity in Williamsfield

This chart illustrates the average monthly humidity levels in Williamsfield, 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 Williamsfield is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%81%81%82%78%81%79%77%78%79%87%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Williamsfield

In Williamsfield 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 Williamsfield.

Maximum UV Index Levels in Williamsfield for September

The chart shows the monthly maximum UV Index (UVI) for Williamsfield 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 Williamsfield typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35689111098642
Data source: Williamsfield 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 Williamsfield Compares to Other Months

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

This table compares monthly weather conditions in Williamsfield, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (26°F)57 mm (2.2 inches)81%moderate
February Weather-2°C (28°F)66 mm (2.6 inches)81%moderate
March Weather5°C (41°F)105 mm (4.1 inches)81%high
April Weather10°C (50°F)113 mm (4.5 inches)82%very high
May Weather17°C (63°F)159 mm (6.3 inches)78%very high
June Weather23°C (74°F)159 mm (6.3 inches)81%extreme
July Weather25°C (77°F)106 mm (4.2 inches)79%very high
August Weather23°C (74°F)68 mm (2.7 inches)77%very high
September Weather21°C (69°F)91 mm (3.6 inches)78%very high
October Weather13°C (55°F)125 mm (4.9 inches)78%high
November Weather4°C (40°F)54 mm (2.1 inches)87%moderate
December Weather1°C (33°F)51 mm (2.0 inches)84%low

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