Delaware County, IA Climate

Delaware, IA County has a humid continental climate with cold winters and warm summers. In the winter months, temperatures can fall to below zero degrees Fahrenheit, while in the summer temperatures can reach into the mid-80s. Precipitation is fairly evenly spread throughout the seasons with an average annual total of around 35 inches. The climate is generally mild and pleasant, making it an ideal place for outdoor activities year-round.

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

Delaware County averages 32 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 Delaware County. The US average is 205 sunny days.

Delaware 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 83 degrees
Winter Low: the January low is 8
Rain: averages 37 inches of rain a year
Snow: averages 32 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Delaware County is 6.7 (10=best), which means it is less comfortable than most places in Iowa.

9 Summer - 4.2 Winter

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

Climate	Delaware, Iowa	United States
	Unlock	38.1 in.
	31.9 in.	Unlock
	Unlock	106.2 days
	191 days	Unlock
	83.1°	85.8°
	Unlock	21.7°
	6.7	Unlock
	Unlock	4.3
	1015 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 Delaware County with an average high temperature of 83.1°, which ranks it as cooler than most places in Iowa. In Delaware County, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Delaware County are June, August and September.

In Delaware County, there are 8.5 days annually when the high temperature is over 90°, which is cooler than most places in Iowa.

January has the coldest nighttime temperatures for Delaware County with an average of 7.7°. This is colder than most places in Iowa.

In Delaware County, there are 156.3 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Iowa.

In Delaware County, there are 22.0 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Iowa.

The humidity is usually comfortable in Delaware 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 Delaware County with 5.3 inches of rain, and the driest month is January with 1.0 inches. The wettest season is Autumn with 40% of yearly precipitation and 10% occurs in Spring, which is the driest season. The annual rainfall of 36.9 inches in Delaware County means that it is wetter than most places in Iowa.

May is the rainiest month in Delaware County with 11.9 days of rain, and February is the driest month with only 6.4 rainy days. There are 107.1 rainy days annually in Delaware 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 31.9 inches in Delaware County means that it is snowier than most places in Iowa. January is the snowiest month in Delaware County with 8.8 inches of snow, and 6 months of the year have significant snowfall.

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