September Weather in Webster City, United States

Last updated: June 24, 2025

In September, the average temperature in Webster City, United States hovers around 19°C (67°F). Expect fluctuations, with minimums dipping to 3°C (38°F) and maximums soaring up to 35°C (95°F). The region experiences an average precipitation of 120 mm (4.7 in) spread over approximately 10 days, paired with an average humidity level of 75%.

September Temperature in Webster City

In September in Webster City, the average temperature is 19°C (67°F). Maximums can reach 35°C (95°F), while minimums can dip as low as 3°C (38°F). This variability makes Webster City a great destination for travelers seeking a mix of warm and cooler weather experiences.

September Weather in Webster City: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Webster City, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Webster City, September typically has an average temperature of 19°C (67°F), with highs reaching up to 35°C (95°F) and lows dropping to around 3°C (38°F).

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

September Precipitation in Webster City

In Webster City in September, the precipitation amount is 120 mm (4.7 in) spread over a duration of 10 days.

September Precipitation Trends in Webster City

The chart displays monthly precipitation patterns in Webster City, 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 Webster City, September typically receives around 120 mm (4.7 inches) of precipitation spread over approximately 10 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 Webster City

In Webster City 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 Webster City

This chart illustrates the average monthly humidity levels in Webster City, 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 Webster City 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 Webster City

In Webster City 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 Webster City.

Maximum UV Index Levels in Webster City for September

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

Data source: Webster City 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 Webster City Compares to Other Months

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

This table compares monthly weather conditions in Webster City, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-7°C (20°F)	33 mm (1.3 inches)	82%	moderate
February Weather	-7°C (20°F)	45 mm (1.8 inches)	84%	moderate
March Weather	3°C (37°F)	72 mm (2.8 inches)	80%	moderate
April Weather	8°C (47°F)	72 mm (2.8 inches)	81%	very high
May Weather	16°C (61°F)	171 mm (6.7 inches)	74%	very high
June Weather	23°C (74°F)	109 mm (4.3 inches)	80%	extreme
July Weather	24°C (76°F)	83 mm (3.3 inches)	80%	very high
August Weather	22°C (72°F)	92 mm (3.6 inches)	77%	very high
September Weather	19°C (67°F)	120 mm (4.7 inches)	75%	very high
October Weather	10°C (51°F)	120 mm (4.7 inches)	80%	high
November Weather	2°C (37°F)	43 mm (1.7 inches)	87%	moderate
December Weather	-2°C (29°F)	37 mm (1.5 inches)	83%	moderate