Delaware County, OH Climate

Delaware County, Ohio has a typical humid continental climate. Summers are warm and humid with temperatures ranging from the mid 70s to the upper 80s Fahrenheit. Winters are cold and snowy with January temperatures averaging in the low 20s Fahrenheit. There is an average of 42 inches of rain per year with most falling between April and September. Snowfall totals range from 15-25 inches each winter. The area also experiences some extreme weather conditions such as tornadoes, blizzards, thunderstorms and heat waves throughout the year.

Delaware County, Ohio gets 39 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Delaware County averages 23 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 175 sunny days per year in Delaware County. The US average is 205 sunny days.

Delaware County gets some kind of precipitation, on average, 129 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 85 degrees
Winter Low: the January low is 20
Rain: averages 39 inches of rain a year
Snow: averages 23 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Delaware County is 7.1 (10=best), which means it is more comfortable than most places in Ohio.

8.9 Summer - 5 Winter

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

Climate	Delaware, Ohio	United States
	Unlock	38.1 in.
	22.6 in.	Unlock
	Unlock	106.2 days
	175 days	Unlock
	84.7°	85.8°
	Unlock	21.7°
	7.1	Unlock
	Unlock	4.3
	939 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 84.7°, which ranks it as warmer than most places in Ohio. In Delaware County, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Delaware County are September, June and May.

In Delaware County, there are 14.5 days annually when the high temperature is over 90°, which is hotter than most places in Ohio.

January has the coldest nighttime temperatures for Delaware County with an average of 19.9°. This is about average compared to other places in Ohio.

In Delaware County, there are 116.9 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Ohio.

In Delaware County, there are 4.2 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Ohio.

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 4.4 inches of rain, and the driest month is February with 2.1 inches. The wettest season is Autumn with 31% of yearly precipitation and 19% occurs in Spring, which is the driest season. The annual rainfall of 38.7 inches in Delaware County means that it is drier than most places in Ohio.

April is the rainiest month in Delaware County with 13.3 days of rain, and September is the driest month with only 8.4 rainy days. There are 129.1 rainy days annually in Delaware County, which is about average compared to other places in Ohio. The rainiest season is Summer when it rains 29% of the time and the driest is Winter with only a 23% chance of a rainy day.

An annual snowfall of 22.6 inches in Delaware County means that it is about average compared to other places in Ohio. January is the snowiest month in Delaware County with 7.6 inches of snow, and 6 months of the year have significant snowfall.

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