September Weather in Fredonia, United States

Last updated: June 24, 2025

In September, the average temperature in Fredonia, United States is a comfortable 21°C (70°F). While temperatures can dip to a chilly 2°C (35°F), they can also soar to a sweltering 37°C (99°F). Expect a light 10 mm (0.4 in) of precipitation over 1 day, accompanied by an average humidity of 47%. Perfect for planning your activities!

September Temperature in Fredonia

In September in Fredonia, the average temperature is 21°C (70°F). Maximums can reach 37°C (99°F), and minimums can be as low as 2°C (35°F). Be prepared for a wide range of temperatures when traveling, so pack accordingly!

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

The chart illustrates September temperature patterns in Fredonia, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fredonia, September typically has an average temperature of 21°C (70°F), with highs reaching up to 37°C (99°F) and lows dropping to around 2°C (35°F).

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

September Precipitation in Fredonia

In Fredonia in September, the precipitation amount is 10 mm (0.4 in) over the course of 1 day.

September Precipitation Trends in Fredonia

The chart displays monthly precipitation patterns in Fredonia, 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 Fredonia, September typically receives around 10 mm (0.4 inches) of precipitation spread over approximately 1 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 Fredonia

In Fredonia in September, humidity is 47%. With an average temperature of 21°C (70°F), this humidity feels like a pleasant embrace, making it an ideal time for exploring the outdoors and enjoying leisurely walks without the discomfort of excessive heat or stickiness.

September Average Humidity in Fredonia

This chart illustrates the average monthly humidity levels in Fredonia, 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 Fredonia is approximately 47%, 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 Fredonia

In Fredonia 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 Fredonia.

Maximum UV Index Levels in Fredonia for September

The chart shows the monthly maximum UV Index (UVI) for Fredonia 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 Fredonia typically reaches 10, which falls under the very high exposure category.

Data source: Fredonia 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 Fredonia Compares to Other Months

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

This table compares monthly weather conditions in Fredonia, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	0°C (32°F)	42 mm (1.7 inches)	80%	moderate
February Weather	2°C (35°F)	46 mm (1.8 inches)	82%	high
March Weather	6°C (44°F)	54 mm (2.1 inches)	72%	very high
April Weather	12°C (54°F)	18 mm (0.7 inches)	62%	very high
May Weather	17°C (62°F)	19 mm (0.7 inches)	45%	extreme
June Weather	24°C (75°F)	2 mm (0.1 inches)	34%	extreme
July Weather	26°C (80°F)	18 mm (0.7 inches)	30%	extreme
August Weather	26°C (78°F)	19 mm (0.7 inches)	31%	extreme
September Weather	21°C (70°F)	10 mm (0.4 inches)	47%	very high
October Weather	12°C (54°F)	23 mm (0.9 inches)	62%	high
November Weather	7°C (44°F)	24 mm (0.9 inches)	77%	moderate
December Weather	1°C (33°F)	41 mm (1.6 inches)	80%	moderate