Jefferson County, OK Climate

Jefferson, OK County has a warm climate that can vary throughout the year. Summers are hot and humid, with temperatures reaching into the 90s during the day and often staying in the high 70s or low 80s overnight. Winter temperatures can dip pretty low, sometimes down to single digits, although snow is rare. Spring and fall are typically milder months, with temperatures usually ranging from the 50s to the 70s during the day. Precipitation is fairly common year-round, so be sure to bring an umbrella if you're visiting Jefferson!

Jefferson County, Oklahoma gets 34 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Jefferson County averages 2 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 244 sunny days per year in Jefferson County. The US average is 205 sunny days.

Jefferson County gets some kind of precipitation, on average, 62 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 96 degrees
Winter Low: the January low is 29
Rain: averages 34 inches of rain a year
Snow: averages 2 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Jefferson County is 7.4 (10=best), which means it is one of the most pleasant places in Oklahoma.

5.1 Summer - 7.2 Winter

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

Climate	Jefferson, Oklahoma	United States
	34.4 in.	38.1 in.
	2.0 in.	27.8 in.
	62.3 days	106.2 days
	244 days	205 days
	95.5°	85.8°
	29.0°	21.7°
	7.4	7
	5.5	4.3
	897 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 Jefferson County with an average high temperature of 95.8°, which ranks it as one of the hottest places in Oklahoma. In Jefferson County, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Jefferson County are October, April and May.

In Jefferson County, there are 86.5 days annually when the high temperature is over 90°, which is one of the hottest places in Oklahoma.

January has the coldest nighttime temperatures for Jefferson County with an average of 29.0°. This is one of the warmest places in Oklahoma.

In Jefferson County, there are 64.1 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Oklahoma.

In Jefferson County, there are 0.1 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Oklahoma.

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

May is the wettest month in Jefferson County with 4.8 inches of rain, and the driest month is January with 1.5 inches. The wettest season is Summer with 31% of yearly precipitation and 16% occurs in Spring, which is the driest season. The annual rainfall of 34.4 inches in Jefferson County means that it is drier than most places in Oklahoma.

May is the rainiest month in Jefferson County with 7.4 days of rain, and July is the driest month with only 4.0 rainy days. There are 62.3 rainy days annually in Jefferson County, which is one of the least rainy places in Oklahoma. The rainiest season is Summer when it rains 29% of the time and the driest is Spring with only a 21% chance of a rainy day.

An annual snowfall of 2.0 inches in Jefferson County means that it is one of the least snowy places in Oklahoma. January is the snowiest month in Jefferson County with 0.7 inches of snow, and 2 months of the year have significant snowfall.

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