October Weather in Iowa, United States

Last updated: June 24, 2025

In October, the average temperature in Iowa, United States is a pleasant 22°C (72°F). Visitors can expect a minimum of 2°C (36°F) and a maximum reaching up to 35°C (95°F). With an average humidity level of 73%, the climate can feel quite tropical. Do be prepared for some rain, as 122 mm (4.8 in) of precipitation may fall over approximately 10 days.

October Temperature in Iowa

In October in Iowa, the average temperature is 22°C (72°F). Maximums can reach 35°C (95°F) and minimums can be as low as 2°C (36°F). This varied climate makes Iowa an ideal destination for travelers seeking both warm days and cooler evenings.

October Weather in Iowa: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Iowa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Iowa, October typically has an average temperature of 22°C (72°F), with highs reaching up to 35°C (95°F) and lows dropping to around 2°C (36°F).

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

October Precipitation in Iowa

In Iowa in October, the total precipitation amount reaches 122 mm (4.8 in) over the course of 10 days.

October Precipitation Trends in Iowa

The chart displays monthly precipitation patterns in Iowa, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Iowa, October typically receives around 122 mm (4.8 inches) of precipitation spread over approximately 10 days.

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

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Millimeters (mm) Inches (in)

October Humidity in Iowa

In Iowa in October, humidity is 73%. With an average temperature of 22°C (72°F), this humidity feels like a warm embrace that can make outdoor activities feel sticky and heavy, so it's best to stay hydrated and take frequent breaks while exploring.

October Average Humidity in Iowa

This chart illustrates the average monthly humidity levels in Iowa, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Iowa is approximately 73%, offering insight into how humid the weather typically is during this month.

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

October UV Index in Iowa

In Iowa in October, 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 Iowa.

Maximum UV Index Levels in Iowa for October

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

Data source: Iowa October 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 October Weather in Iowa Compares to Other Months

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

This table compares monthly weather conditions in Iowa, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	12°C (53°F)	117 mm (4.6 inches)	81%	moderate
February Weather	14°C (58°F)	107 mm (4.2 inches)	81%	very high
March Weather	18°C (65°F)	70 mm (2.7 inches)	79%	very high
April Weather	20°C (69°F)	155 mm (6.1 inches)	80%	very high
May Weather	25°C (77°F)	193 mm (7.6 inches)	81%	extreme
June Weather	27°C (81°F)	163 mm (6.4 inches)	76%	extreme
July Weather	28°C (83°F)	158 mm (6.2 inches)	73%	extreme
August Weather	28°C (83°F)	179 mm (7.1 inches)	71%	extreme
September Weather	26°C (80°F)	163 mm (6.4 inches)	72%	very high
October Weather	22°C (72°F)	122 mm (4.8 inches)	73%	very high
November Weather	16°C (60°F)	75 mm (2.9 inches)	83%	high
December Weather	14°C (57°F)	119 mm (4.7 inches)	88%	moderate