Marshalltown Metro Area, IA Climate

The climate in the Marshalltown, IA Metro Area is generally mild. Summers tend to be hot and humid, with temperatures averaging in the mid to upper 80s and plenty of sunshine. Winters are cold and snowy, with temperatures typically ranging between the low 20s and high 30s. Precipitation is fairly consistent throughout the year, with an average annual total of about 36 inches. The area also experiences moderate levels of wind throughout most of the year.

Marshalltown Metro Area, Iowa gets 36 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Marshalltown Metro Area averages 27 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 197 sunny days per year in Marshalltown Metro Area. The US average is 205 sunny days.

Marshalltown Metro Area gets some kind of precipitation, on average, 95 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.

Weather Highlights

Summer High: the July high is around 84 degrees
Winter Low: the January low is 10
Rain: averages 36 inches of rain a year
Snow: averages 27 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for the Marshalltown metro area is 6.9 (10=best), which means it is more comfortable than most places in Iowa.

8.9 Summer - 4.5 Winter

June, September and August are the most pleasant months in the Marshalltown metro area, while January and December are the least comfortable months.

Climate	Marshalltown, Iowa	United States
	Unlock	38.1 in.
	27.3 in.	Unlock
	Unlock	106.2 days
	197 days	Unlock
	83.7°	85.8°
	Unlock	21.7°
	6.9	Unlock
	Unlock	4.3
	985 ft.	Unlock

Climate

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

July is the hottest month for the Marshalltown metro area with an average high temperature of 83.7°, which ranks it as cooler than most places in Iowa. In the Marshalltown metro area, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for the Marshalltown metro area are June, September and August.

In the Marshalltown metro area, there are 10.3 days annually when the high temperature is over 90°, which is cooler than most places in Iowa.

January has the coldest nighttime temperatures for the Marshalltown metro area with an average of 9.7°. This is about average compared to other places in Iowa.

In the Marshalltown metro area, there are 150.5 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Iowa.

In the Marshalltown metro area, there are 18.7 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Iowa.

The humidity is usually comfortable in the Marshalltown metro area but some summer months can be sticky or muggy. July is the most humid month, though humidity is low for most of the year. The most humid months are July, August and June.

June is the wettest month in the Marshalltown metro area with 5.2 inches of rain, and the driest month is January with 0.9 inches. The wettest season is Autumn with 40% of yearly precipitation and 9% occurs in Spring, which is the driest season. The annual rainfall of 35.5 inches in the Marshalltown metro area means that it is about average compared to other places in Iowa.

May is the rainiest month in the Marshalltown metro area with 11.4 days of rain, and January is the driest month with only 5.3 rainy days. There are 94.8 rainy days annually in the Marshalltown metro area, which is less rainy than most places in Iowa. The rainiest season is Summer when it rains 30% of the time and the driest is Spring with only a 18% chance of a rainy day.

An annual snowfall of 27.3 inches in the Marshalltown metro area means that it is less snowy than most places in Iowa. December is the snowiest month in the Marshalltown metro area with 7.6 inches of snow, and 6 months of the year have significant snowfall.

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