Zip 98155 (Shoreline, WA) Climate

98155 Shoreline, WA has a mild climate with warm summers and cool winters. The average annual temperature is 54°F, with an average summer high of 70°F. During the winter months, temperatures tend to drop into the 40s with occasional snowfall during the colder months. The area receives an average of 38 inches of rain per year, creating the perfect environment for lush greenery throughout the year.

Shoreline (zip 98155), Washington gets 37 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Shoreline (zip 98155) averages 4 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 164 sunny days per year in Shoreline (zip 98155). The US average is 205 sunny days.

Shoreline (zip 98155) gets some kind of precipitation, on average, 162 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 74 degrees
Winter Low: the January low is 37
Rain: averages 37 inches of rain a year
Snow: averages 4 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for the 98155 zip code is 7.3 (10=best), which means it is more comfortable than most places in Washington.

9.3 Summer - 5.5 Winter

August, July and September are the most pleasant months in the 98155 zip code, while December and January are the least comfortable months.

Climate	Shoreline, Washington	United States
	36.6 in.	38.1 in.
	3.7 in.	27.8 in.
	161.5 days	106.2 days
	164 days	205 days
	74.2°	85.8°
	37.1°	21.7°
	7.3	7
	2.6	4.3
	327 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 the 98155 zip code with an average high temperature of 75.0°, which ranks it as cooler than most places in Washington. In the 98155 zip code, there are 2 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for the 98155 zip code are August, July and September.

In the 98155 zip code, there are 1.0 days annually when the high temperature is over 90°, which is cooler than most places in Washington.

December has the coldest nighttime temperatures for the 98155 zip code with an average of 35.9°. This is one of the warmest places in Washington.

In the 98155 zip code, there are 22.0 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Washington.

In the 98155 zip code, 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 the 98155 zip code 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 the 98155 zip code with 6.0 inches of rain, and the driest month is July with 0.9 inches. The wettest season is Spring with 38% of yearly precipitation and 10% occurs in Autumn, which is the driest season. The annual rainfall of 36.6 inches in the 98155 zip code means that it is drier than most places in Washington.

November is the rainiest month in the 98155 zip code with 19.2 days of rain, and August is the driest month with only 5.6 rainy days. There are 161.5 rainy days annually in the 98155 zip code, which is about average compared to other 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 3.7 inches in the 98155 zip code means that it is less snowy than most places in Washington. December is the snowiest month in the 98155 zip code with 1.9 inches of snow, and 4 months of the year have significant snowfall.

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