Washington County, OK Climate

Washington, OK County has a humid subtropical climate, with hot summers and mild winters. Average temperatures range from lows in the winter of around 35°F to highs in the summer of around 90°F. Rainfall is abundant throughout the year, but especially during the spring months when thunderstorms are also common. The area occasionally experiences severe weather such as tornadoes and hail storms. Snowfall is rare and usually only occurs during late fall or early winter.

Washington County, Oklahoma gets 42 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Washington County averages 9 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 230 sunny days per year in Washington County. The US average is 205 sunny days.

Washington County gets some kind of precipitation, on average, 79 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 92 degrees
Winter Low: the January low is 24
Rain: averages 42 inches of rain a year
Snow: averages 9 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Washington County is 7.2 (10=best), which means it is about average compared to other places in Oklahoma.

6 Summer - 6.3 Winter

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

Climate	Washington, Oklahoma	United States
	Unlock	38.1 in.
	8.9 in.	Unlock
	Unlock	106.2 days
	230 days	Unlock
	92.1°	85.8°
	Unlock	21.7°
	7.2	Unlock
	Unlock	4.3
	726 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.

August is the hottest month for Washington County with an average high temperature of 92.5°, which ranks it as cooler than most places in Oklahoma. In Washington County, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Washington County are May, September and October.

In Washington County, there are 57.1 days annually when the high temperature is over 90°, which is cooler than most places in Oklahoma.

January has the coldest nighttime temperatures for Washington County with an average of 23.6°. This is colder than most places in Oklahoma.

In Washington County, there are 92.8 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Oklahoma.

In Washington County, there are 1.0 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 Washington 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 Washington County.

May is the wettest month in Washington County with 5.7 inches of rain, and the driest month is January with 1.8 inches. The wettest season is Summer with 31% of yearly precipitation and 14% occurs in Spring, which is the driest season. The annual rainfall of 41.9 inches in Washington County means that it is about average compared to other places in Oklahoma.

May is the rainiest month in Washington County with 9.6 days of rain, and January is the driest month with only 5.0 rainy days. There are 78.6 rainy days annually in Washington County, which is about average compared to other places in Oklahoma. The rainiest season is Summer when it rains 31% of the time and the driest is Spring with only a 20% chance of a rainy day.

An annual snowfall of 8.9 inches in Washington County means that it is snowier than most places in Oklahoma. January is the snowiest month in Washington County with 3.9 inches of snow, and 4 months of the year have significant snowfall.

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