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September Weather in Valley Hill, United States

Last updated: June 24, 2025

In September, the average temperature in Valley Hill, United States is a delightful 21°C (69°F), creating a pleasant atmosphere for both locals and visitors. Temperatures can range from a cool 6°C (43°F) to a warm 32°C (90°F). Expect about 149 mm (5.9 in) of precipitation spread over 10 days, contributing to the region’s lush scenery. With an average humidity of 76%, the air feels comfortably moist, perfect for enjoying the vibrant surroundings.

September Temperature in Valley Hill

In September in Valley Hill, the average temperature is 21°C (69°F). Maximum temperatures can reach 32°C (90°F), and minimums can drop as low as 6°C (43°F). This range of temperatures makes it an excellent time for travelers to explore Valley Hill, whether they prefer warm afternoons or cooler evenings.

September Weather in Valley Hill: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Valley Hill, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Valley Hill, September typically has an average temperature of 21°C (69°F), with highs reaching up to 32°C (90°F) and lows dropping to around 6°C (43°F).
JanFebMarAprMayJunJulAugSepOctNovDec404550576571747369604743
Data source: Temperature data for Valley Hill 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 Valley Hill

In Valley Hill in September, the total precipitation amount is 149 mm (5.9 in) spread over 10 days.

September Precipitation Trends in Valley Hill

The chart displays monthly precipitation patterns in Valley Hill, 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 Valley Hill, September typically receives around 149 mm (5.9 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec1051321031391419911614514917489133
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Valley Hill

In Valley Hill in September, humidity is 76%. With an average temperature of 21°C (69°F), this humidity feels like a warm, enveloping blanket, making travel slightly uncomfortable and creating a sticky atmosphere that can sap your energy as you explore.

September Average Humidity in Valley Hill

This chart illustrates the average monthly humidity levels in Valley Hill, 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 Valley Hill is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%86%82%85%85%83%76%76%80%88%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Valley Hill

In Valley Hill 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 Valley Hill.

Maximum UV Index Levels in Valley Hill for September

The chart shows the monthly maximum UV Index (UVI) for Valley Hill 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 Valley Hill typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec47810111111109864
Data source: Valley Hill 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 Valley Hill Compares to Other Months

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

This table compares monthly weather conditions in Valley Hill, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)104 mm (4.1 inches)86%moderate
February Weather7°C (45°F)132 mm (5.2 inches)86%high
March Weather10°C (50°F)103 mm (4.0 inches)86%very high
April Weather14°C (57°F)139 mm (5.5 inches)82%very high
May Weather18°C (65°F)141 mm (5.5 inches)85%extreme
June Weather22°C (71°F)99 mm (3.9 inches)85%extreme
July Weather23°C (74°F)115 mm (4.5 inches)83%extreme
August Weather23°C (73°F)145 mm (5.7 inches)76%very high
September Weather21°C (69°F)149 mm (5.9 inches)76%very high
October Weather16°C (61°F)174 mm (6.8 inches)80%very high
November Weather8°C (47°F)89 mm (3.5 inches)88%high
December Weather6°C (43°F)133 mm (5.2 inches)88%moderate

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