September Weather in Fredonia, United States

Last updated: June 24, 2025

In Fredonia, United States, the average temperature in September hovers around 23°C (74°F). Expect minimums of 6°C (43°F) and soaring maximums of 35°C (95°F). During this month, anticipate about 80 mm (3.1 in) of precipitation over 8 days, with an average humidity of 67%. So, whether you enjoy the warmth or the occasional rain, September has something for everyone!

September Temperature in Fredonia

In September in Fredonia, the average temperature is 23°C (74°F). The maximum can reach 35°C (95°F), while the minimum can drop as low as 6°C (43°F). This varied climate makes Fredonia an ideal destination for travelers seeking both warm days and cooler nights.

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 23°C (74°F), with highs reaching up to 35°C (95°F) and lows dropping to around 6°C (43°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 80 mm (3.1 in) over a period of 8 days.

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 80 mm (3.1 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 Fredonia

In Fredonia in September humidity is 67%. With an average temperature of 23°C (74°F), this humidity feels like a warm embrace, making outdoor exploration pleasant yet slightly sticky, perfect for leisurely strolls but requiring occasional breaks for hydration.

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 67%, 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 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 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 9, 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	2°C (35°F)	59 mm (2.3 inches)	77%	moderate
February Weather	2°C (37°F)	50 mm (2.0 inches)	76%	moderate
March Weather	10°C (50°F)	104 mm (4.1 inches)	71%	high
April Weather	14°C (57°F)	112 mm (4.4 inches)	73%	very high
May Weather	20°C (68°F)	221 mm (8.7 inches)	83%	very high
June Weather	25°C (78°F)	98 mm (3.8 inches)	83%	extreme
July Weather	27°C (81°F)	102 mm (4.0 inches)	81%	extreme
August Weather	26°C (79°F)	108 mm (4.2 inches)	73%	very high
September Weather	23°C (74°F)	80 mm (3.1 inches)	67%	very high
October Weather	15°C (59°F)	149 mm (5.9 inches)	72%	high
November Weather	8°C (47°F)	34 mm (1.3 inches)	82%	moderate
December Weather	5°C (41°F)	32 mm (1.3 inches)	85%	moderate