September Weather in Buttonwillow, United States

Last updated: June 24, 2025

In Buttonwillow, United States, the average temperature in September reaches a warm 27°C (81°F), perfect for outdoor activities. However, temperatures can vary significantly, with a minimum of 11°C (51°F) and a scorching maximum of 42°C (109°F). Expect little to no rain, as precipitation is a mere 1 mm (0.0 in) over 0 days, and enjoy a comfortable average humidity of 48%.

September Temperature in Buttonwillow

In September in Buttonwillow, the average temperature is 27°C (81°F), with maximums reaching up to 42°C (109°F) and minimums dropping as low as 11°C (51°F). It's advisable to pack for both warm days and cooler nights while exploring this destination.

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

The chart illustrates September temperature patterns in Buttonwillow, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Buttonwillow, September typically has an average temperature of 27°C (81°F), with highs reaching up to 42°C (109°F) and lows dropping to around 11°C (51°F).

Data source: Temperature data for Buttonwillow generated using information from the Copernicus Climate Change Service.

September Precipitation in Buttonwillow

In Buttonwillow in September, the precipitation amount is 1 mm (0.0 in) during a span of 0 days.

September Precipitation Trends in Buttonwillow

The chart displays monthly precipitation patterns in Buttonwillow, 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 Buttonwillow, September typically receives around 1 mm (0.0 inches) of precipitation spread over approximately 0 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

September Humidity in Buttonwillow

In Buttonwillow in September, humidity is 48%. With an average temperature of 27°C (81°F), this humidity feels like a pleasant warmth that envelops you, making it comfortable for traveling while also inviting you to explore the sights without feeling overwhelmed.

September Average Humidity in Buttonwillow

This chart illustrates the average monthly humidity levels in Buttonwillow, 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 Buttonwillow is approximately 48%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Buttonwillow

In Buttonwillow 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 Buttonwillow.

Maximum UV Index Levels in Buttonwillow for September

The chart shows the monthly maximum UV Index (UVI) for Buttonwillow 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 Buttonwillow typically reaches 9, which falls under the very high exposure category.

Data source: Buttonwillow 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 Buttonwillow Compares to Other Months

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

This table compares monthly weather conditions in Buttonwillow, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	11°C (52°F)	40 mm (1.6 inches)	78%	moderate
February Weather	13°C (55°F)	42 mm (1.7 inches)	82%	moderate
March Weather	15°C (59°F)	50 mm (1.9 inches)	75%	very high
April Weather	19°C (66°F)	24 mm (0.9 inches)	68%	very high
May Weather	22°C (73°F)	11 mm (0.4 inches)	57%	very high
June Weather	28°C (82°F)	1 mm (0.0 inches)	52%	extreme
July Weather	31°C (88°F)	0 mm (0.0 inches)	46%	extreme
August Weather	31°C (87°F)	0 mm (0.0 inches)	39%	extreme
September Weather	27°C (81°F)	1 mm (0.0 inches)	48%	very high
October Weather	21°C (70°F)	6 mm (0.2 inches)	59%	high
November Weather	15°C (60°F)	16 mm (0.6 inches)	72%	moderate
December Weather	11°C (52°F)	38 mm (1.5 inches)	76%	moderate