Jefferson County, WV Climate

Jefferson County, West Virginia has a humid continental climate with hot and humid summers. In the summertime, the temperature can range from scorching highs of 90°F to lows of 70°F. Winters in Jefferson County are cold and wet with temperatures that can reach as low as 10°F or -10°C. Snowfall is often seen during the winter months, bringing an average of 30 inches per year. Spring is mild and usually brings warmer temperatures and rain showers, while autumn brings cooler temperatures as well as an abundance of beautiful colors from the foliage. Overall, Jefferson County’s climate is mild compared to other parts of West Virginia but it still has its fair share of seasonal weather patterns that you should expect if you plan on visiting or living here.

Jefferson County, West Virginia gets 40 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Jefferson County averages 20 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 197 sunny days per year in Jefferson County. The US average is 205 sunny days.

Jefferson County gets some kind of precipitation, on average, 116 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 86 degrees
Winter Low: the January low is 21
Rain: averages 40 inches of rain a year
Snow: averages 20 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Jefferson County is 7.3 (10=best), which means it is one of the most pleasant places in West Virginia.

8.6 Summer - 5.5 Winter

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

Climate	Jefferson, West Virginia	United States
	40.1 in.	38.1 in.
	20.0 in.	27.8 in.
	115.9 days	106.2 days
	197 days	205 days
	86.1°	85.8°
	21.3°	21.7°
	7.3	7
	3.9	4.3
	518 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.

July is the hottest month for Jefferson County with an average high temperature of 86.1°, which ranks it as warmer than most places in West Virginia. In Jefferson County, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Jefferson County are September, June and May.

In Jefferson County, there are 20.3 days annually when the high temperature is over 90°, which is hotter than most places in West Virginia.

January has the coldest nighttime temperatures for Jefferson County with an average of 21.3°. This is about average compared to other places in West Virginia.

In Jefferson County, there are 120.0 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in West Virginia.

In Jefferson County, there are 1.2 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in West Virginia.

The humidity is usually comfortable in Jefferson 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.

May is the wettest month in Jefferson County with 4.2 inches of rain, and the driest month is February with 2.5 inches. The wettest season is Summer with 28% of yearly precipitation and 20% occurs in Spring, which is the driest season. The annual rainfall of 40.1 inches in Jefferson County means that it is drier than most places in West Virginia.

May is the rainiest month in Jefferson County with 12.2 days of rain, and October is the driest month with only 8.4 rainy days. There are 115.9 rainy days annually in Jefferson County, which is one of the least rainy places in West Virginia. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 23% chance of a rainy day.

An annual snowfall of 20.0 inches in Jefferson County means that it is less snowy than most places in West Virginia. January is the snowiest month in Jefferson County with 6.8 inches of snow, and 5 months of the year have significant snowfall.

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