September Weather in Avon, United States

Last updated: June 24, 2025

In September, the average temperature in Avon, United States hovers around 19°C (67°F), offering a pleasant climate. Expect minimums of 5°C (41°F) and occasional highs reaching 34°C (94°F). During this month, 82 mm (3.2 in) of precipitation typically falls over 8 days, contributing to an average humidity of 75%. Enjoy the mild weather while staying prepared for the occasional rain!

September Temperature in Avon

In September in Avon, the average temperature is 19°C (67°F). Maximum temperatures can reach 34°C (94°F), while minimums can drop as low as 5°C (41°F). Travelers should be prepared for a range of temperatures, making layering essential for comfort.

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

The chart illustrates September temperature patterns in Avon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Avon, September typically has an average temperature of 19°C (67°F), with highs reaching up to 34°C (94°F) and lows dropping to around 5°C (41°F).

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

September Precipitation in Avon

In Avon in September, the total precipitation amount reached 82 mm (3.2 in) over the course of 8 days.

September Precipitation Trends in Avon

The chart displays monthly precipitation patterns in Avon, 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 Avon, September typically receives around 82 mm (3.2 inches) of precipitation spread over approximately 8 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Avon

In Avon in September humidity is 75%. With an average temperature of 19°C (67°F), this humidity feels like a warm embrace, making travel invigorating yet slightly sticky, as you navigate through the vibrant streets or scenic landscapes.

September Average Humidity in Avon

This chart illustrates the average monthly humidity levels in Avon, 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 Avon is approximately 75%, 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 Avon

In Avon 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 Avon.

Maximum UV Index Levels in Avon for September

The chart shows the monthly maximum UV Index (UVI) for Avon 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 Avon typically reaches 8, which falls under the very high exposure category.

Data source: Avon 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 Avon Compares to Other Months

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

This table compares monthly weather conditions in Avon, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (22°F)	20 mm (0.8 inches)	77%	low
February Weather	-6°C (22°F)	22 mm (0.9 inches)	81%	moderate
March Weather	3°C (37°F)	70 mm (2.7 inches)	71%	high
April Weather	8°C (46°F)	63 mm (2.5 inches)	75%	very high
May Weather	15°C (60°F)	139 mm (5.5 inches)	74%	very high
June Weather	23°C (74°F)	73 mm (2.9 inches)	82%	extreme
July Weather	25°C (77°F)	88 mm (3.5 inches)	84%	very high
August Weather	23°C (74°F)	98 mm (3.9 inches)	82%	very high
September Weather	19°C (67°F)	82 mm (3.2 inches)	75%	very high
October Weather	10°C (50°F)	79 mm (3.1 inches)	72%	moderate
November Weather	3°C (37°F)	22 mm (0.9 inches)	81%	moderate
December Weather	-3°C (28°F)	42 mm (1.6 inches)	79%	low