Island County, WA Climate

The climate in Island, WA County is generally mild. Summers are warm and dry while winters are cold and wet. Average temperatures range from the high 50's to low 70's in the summer months and mid 30's to low 40's in the winter months. Precipitation is also moderate throughout the year with most of it falling during the winter months and a few light snowfalls occurring each season. The area is known for its consistent winds that often blow in off the Pacific Ocean, providing cooling breezes on hot summer days.

Island County, Washington gets 24 inches of rain, on average, per year. The US average is 38 inches of rain per year.

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

On average, there are 162 sunny days per year in Island County. The US average is 205 sunny days.

Island County gets some kind of precipitation, on average, 143 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 72 degrees
Winter Low: the January low is 37
Rain: averages 24 inches of rain a year
Snow: averages 3 inches of snow a year

Bestplaces Comfort Index

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

9.1 Summer - 5.7 Winter

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

Climate	Island, Washington	United States
	24.2 in.	38.1 in.
	2.9 in.	27.8 in.
	143.3 days	106.2 days
	162 days	205 days
	71.8°	85.8°
	36.8°	21.7°
	7.3	7
	2.7	4.3
	195 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 Island County with an average high temperature of 72.6°, which ranks it as cooler than most places in Washington. In Island County, there are 2 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Island County are August, July and September.

In Island County, there are 0.4 days annually when the high temperature is over 90°, which is one of the coolest places in Washington.

December has the coldest nighttime temperatures for Island County with an average of 35.6°. This is one of the warmest places in Washington.

In Island County, there are 29.6 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Washington.

In Island 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 Island 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 Island County with 3.7 inches of rain, and the driest month is July with 0.8 inches. The wettest season is Spring with 33% of yearly precipitation and 13% occurs in Autumn, which is the driest season. The annual rainfall of 24.2 inches in Island County means that it is drier than most places in Washington.

November is the rainiest month in Island County with 17.2 days of rain, and August is the driest month with only 5.2 rainy days. There are 143.3 rainy days annually in Island County, which is less rainy than most places in Washington. The rainiest season is Spring when it rains 32% of the time and the driest is Autumn with only a 14% chance of a rainy day.

An annual snowfall of 2.9 inches in Island County means that it is less snowy than most places in Washington. December is the snowiest month in Island County with 1.0 inches of snow, and 4 months of the year have significant snowfall.

Reviews for Island

See all ()

Write a Review

Start Your Review of Island

Jobs

The premier source for comprehensive city data for over 30 years.