Linn County, IA Climate

Linn County, Iowa has a humid continental climate characterized by four distinct seasons and plenty of precipitation. Summers are hot and humid with temperatures in the 80s, while winters are cold with temperatures typically dipping into the low 20s. Spring and fall tend to have mild days with temperatures in the 50s and 60s. On average, Linn County receives 45 inches of precipitation annually and is known for its frequent thunderstorms during the summer months. Snowfall averages around 24 inches per year with some areas receiving more than 50 inches during certain winters. Overall, Linn County's climate features both extreme cold temperatures and scorching heat during certain times of year, providing a diverse range of weather conditions throughout the year.

Linn County, Iowa gets 37 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Linn County averages 29 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 191 sunny days per year in Linn County. The US average is 205 sunny days.

Linn County gets some kind of precipitation, on average, 107 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 11
Rain: averages 37 inches of rain a year
Snow: averages 29 inches of snow a year

Bestplaces Comfort Index

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

8.8 Summer - 4.5 Winter

June, September and August are the most pleasant months in Linn County, while January and December are the least comfortable months.

Climate	Linn, Iowa	United States
	36.5 in.	38.1 in.
	28.6 in.	27.8 in.
	107.1 days	106.2 days
	191 days	205 days
	84.2°	85.8°
	11.0°	21.7°
	6.9	7
	3.6	4.3
	851 ft.	2443 ft.

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 Linn County with an average high temperature of 84.2°, which ranks it as about average compared to other places in Iowa. In Linn County, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Linn County are September, June and August.

In Linn County, there are 12.3 days annually when the high temperature is over 90°, which is about average compared to other places in Iowa.

January has the coldest nighttime temperatures for Linn County with an average of 11.0°. This is warmer than most places in Iowa.

In Linn County, there are 143.1 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Iowa.

In Linn County, there are 16.1 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Iowa.

The humidity is usually comfortable in Linn County 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 Linn County with 5.0 inches of rain, and the driest month is January with 1.0 inches. The wettest season is Autumn with 39% of yearly precipitation and 10% occurs in Spring, which is the driest season. The annual rainfall of 36.5 inches in Linn County means that it is wetter than most places in Iowa.

May is the rainiest month in Linn County with 11.7 days of rain, and February is the driest month with only 6.3 rainy days. There are 107.1 rainy days annually in Linn County, which is rainier than most places in Iowa. The rainiest season is Summer when it rains 28% of the time and the driest is Spring with only a 20% chance of a rainy day.

An annual snowfall of 28.6 inches in Linn County means that it is less snowy than most places in Iowa. December is the snowiest month in Linn County with 8.0 inches of snow, and 6 months of the year have significant snowfall.

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