nomadseason

September Weather in Willow Valley, United States

Last updated: June 24, 2025

In September, the average temperature in Willow Valley, United States is a warm 30°C (87°F). Expect a range with minimums dipping to 13°C (55°F) and the occasional peak soaring to a sizzling 46°C (115°F). Precipitation is minimal, with just 7 mm (0.3 in) expected over 1 day, and the average humidity sits comfortably at 48%.

September Temperature in Willow Valley

In September in Willow Valley, the average temperature is 30°C (87°F). Maximums can reach 46°C (115°F), and minimums can be as low as 13°C (55°F). Travelers should be prepared for intense heat during the day, while also packing layers for cooler evenings.

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

The chart illustrates September temperature patterns in Willow Valley, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Willow Valley, September typically has an average temperature of 30°C (87°F), with highs reaching up to 46°C (115°F) and lows dropping to around 13°C (55°F).
JanFebMarAprMayJunJulAugSepOctNovDec525562727990959486726152
Data source: Temperature data for Willow Valley generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Willow Valley

In Willow Valley in September, the precipitation amount is 7 mm (0.3 in) over the course of 1 day.

September Precipitation Trends in Willow Valley

The chart displays monthly precipitation patterns in Willow Valley, 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 Valley, September typically receives around 7 mm (0.3 inches) of precipitation spread over approximately 1 days.
JanFebMarAprMayJunJulAugSepOctNovDec222024331186782313
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Willow Valley

In Willow Valley in September, humidity is 48%. With an average temperature of 30°C (87°F), this humidity feels like a warm, enveloping embrace, making outdoor activities enjoyable yet sweat-inducing, so travelers should stay hydrated and plan for breaks in the shade.

September Average Humidity in Willow Valley

This chart illustrates the average monthly humidity levels in Willow Valley, 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 Valley is approximately 48%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec77%80%68%58%45%31%27%30%48%60%70%77%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Willow Valley

In Willow Valley in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Willow Valley.

Maximum UV Index Levels in Willow Valley for September

The chart shows the monthly maximum UV Index (UVI) for Willow Valley 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 Valley typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101112121110754
Data source: Willow Valley 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 Valley Compares to Other Months

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

This table compares monthly weather conditions in Willow Valley, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather11°C (52°F)22 mm (0.9 inches)77%moderate
February Weather13°C (55°F)20 mm (0.8 inches)80%high
March Weather17°C (62°F)24 mm (0.9 inches)68%very high
April Weather22°C (72°F)3 mm (0.1 inches)58%very high
May Weather26°C (79°F)3 mm (0.1 inches)45%extreme
June Weather32°C (91°F)1 mm (0.0 inches)31%extreme
July Weather35°C (95°F)18 mm (0.7 inches)27%extreme
August Weather35°C (94°F)6 mm (0.2 inches)30%extreme
September Weather30°C (87°F)7 mm (0.3 inches)48%very high
October Weather22°C (72°F)8 mm (0.3 inches)59%high
November Weather16°C (62°F)23 mm (0.9 inches)70%moderate
December Weather11°C (52°F)13 mm (0.5 inches)77%moderate

Compare Willow Valley's Climate with Cities Worldwide