Delaware County, OK Climate

Delaware County, OK has a humid subtropical climate which is typical of Southeast Oklahoma. Summers are hot and humid with temperatures averaging in the upper 80s and lower 90s (Fahrenheit). Winters are mild with temperatures rarely dipping below freezing. Precipitation is abundant throughout the year, averaging between 45–50 inches yearly. The area can also experience severe thunderstorms and occasional tornadoes during the late spring and early summer months.

Delaware County, Oklahoma gets 47 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Delaware County averages 10 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 224 sunny days per year in Delaware County. The US average is 205 sunny days.

Delaware County gets some kind of precipitation, on average, 85 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 91 degrees
Winter Low: the January low is 26
Rain: averages 47 inches of rain a year
Snow: averages 10 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Delaware County is 7.3 (10=best), which means it is more comfortable than most places in Oklahoma.

6.4 Summer - 6.4 Winter

May, September and October are the most pleasant months in Delaware County, while July and August are the least comfortable months.

Climate	Delaware, Oklahoma	United States
	47.0 in.	38.1 in.
	9.6 in.	27.8 in.
	84.7 days	106.2 days
	224 days	205 days
	91.2°	85.8°
	25.7°	21.7°
	7.3	7
	4.7	4.3
	949 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.

August is the hottest month for Delaware County with an average high temperature of 92.0°, which ranks it as cooler than most places in Oklahoma. 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 May, September and October.

In Delaware County, there are 51.6 days annually when the high temperature is over 90°, which is cooler than most places in Oklahoma.

January has the coldest nighttime temperatures for Delaware County with an average of 25.7°. This is about average compared to other places in Oklahoma.

In Delaware County, there are 83.0 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Oklahoma.

In Delaware County, there are 0.9 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Oklahoma.

The humidity can be uncomfortably heavy or close in Delaware County during the summer months. July is the most humid month, though humidity is low for most of the year. July, August and June are the three most humid months in Delaware County.

May is the wettest month in Delaware County with 5.7 inches of rain, and the driest month is January with 2.5 inches. The wettest season is Summer with 30% of yearly precipitation and 18% occurs in Spring, which is the driest season. The annual rainfall of 47.0 inches in Delaware County means that it is wetter than most places in Oklahoma.

May is the rainiest month in Delaware County with 9.4 days of rain, and January is the driest month with only 5.5 rainy days. There are 84.7 rainy days annually in Delaware County, which is rainier than most places in Oklahoma. The rainiest season is Summer when it rains 30% of the time and the driest is Spring with only a 22% chance of a rainy day.

An annual snowfall of 9.6 inches in Delaware County means that it is snowier than most places in Oklahoma. January is the snowiest month in Delaware County with 3.3 inches of snow, and 4 months of the year have significant snowfall.

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