Clark County, WA Climate

The climate in Clark, WA County is generally mild. Summers are warm and sunny with occasional afternoon thunderstorms. Winters are cool and wet with temperatures averaging between 32°F (0°C) during the day to an average low of 22°F (-6°C) overnight. Annual precipitation averages around 40 inches (101 cm), mostly coming from rain and some snowfall in winter months. Spring and fall bring a mix of both, making these seasons ideal for outdoor activities.

Clark County, Washington gets 51 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Clark County averages 3 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 142 sunny days per year in Clark County. The US average is 205 sunny days.

Clark County gets some kind of precipitation, on average, 169 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 79 degrees
Winter Low: the January low is 33
Rain: averages 51 inches of rain a year
Snow: averages 3 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Clark County is 7.2 (10=best), which means it is more comfortable than most places in Washington.

9.2 Summer - 5.2 Winter

July, August and September are the most pleasant months in Clark County, while December and January are the least comfortable months.

Climate	Clark, Washington	United States
	50.9 in.	38.1 in.
	3.1 in.	27.8 in.
	168.8 days	106.2 days
	142 days	205 days
	79.0°	85.8°
	33.4°	21.7°
	7.2	7
	2.9	4.3
	704 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 Clark County with an average high temperature of 80.1°, which ranks it as warmer than most places in Washington. In Clark County, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Clark County are July, August and September.

In Clark County, there are 10.1 days annually when the high temperature is over 90°, which is hotter than most places in Washington.

December has the coldest nighttime temperatures for Clark County with an average of 32.7°. This is about average compared to other places in Washington.

In Clark County, there are 56.6 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Washington.

In Clark County, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Washington.

Humidity in Clark County is generally quite low and comfortable. There are few days during the summer when the humidity becomes unpleasant. The most humid months (but still comfortable) are August, July and September.

November is the wettest month in Clark County with 7.9 inches of rain, and the driest month is July with 0.8 inches. The wettest season is Spring with 40% of yearly precipitation and 8% occurs in Autumn, which is the driest season. The annual rainfall of 50.9 inches in Clark County means that it is wetter than most places in Washington.

November is the rainiest month in Clark County with 20.5 days of rain, and August is the driest month with only 4.2 rainy days. There are 168.8 rainy days annually in Clark County, which is rainier than most places in Washington. The rainiest season is Spring when it rains 33% of the time and the driest is Autumn with only a 11% chance of a rainy day.

An annual snowfall of 3.1 inches in Clark County means that it is less snowy than most places in Washington. February is the snowiest month in Clark County with 1.1 inches of snow, and 3 months of the year have significant snowfall.

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