SeaTac, WA Climate


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United States / Washington / Seattle-Tacoma-Bellevue Metro Area / King County / SeaTac / Zip Codes
SeaTac, WA has a mild climate due to its close proximity to Puget Sound. During the winter months, temperatures average around 45°F, while in summer they tend to remain in the 70s. Rainfall is common throughout the year and can range from light showers to heavy downpours. Snow is uncommon due to SeaTac’s low elevation, but does occasionally fall in higher elevations nearby. The area generally experiences pleasant weather, with plenty of sunshine throughout the year.

SeaTac, Washington gets 39 inches of rain, on average, per year. The US average is 38 inches of rain per year.

SeaTac averages 6 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 152 sunny days per year in SeaTac. The US average is 205 sunny days.

SeaTac gets some kind of precipitation, on average, 157 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 77 degrees
Winter Low: the January low is 37
Rain: averages 39 inches of rain a year
Snow: averages 6 inches of snow a year

Bestplaces Comfort Index

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

9.4 Summer - 5.5 Winter
August, July and September are the most pleasant months in SeaTac, while December and January are the least comfortable months.

  ClimateSeaTac, WashingtonUnited States
  38.9 in.38.1 in.
  5.8 in.27.8 in.
  156.8 days106.2 days
  152 days205 days
  76.6°85.8°
  36.8°21.7°
  7.47
  2.64.3
  269 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 SeaTac with an average high temperature of 77.0°, which ranks it as about average compared to other places in Washington. In SeaTac, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for SeaTac are August, July and September.
In SeaTac, there are 2.7 days annually when the high temperature is over 90°, which is cooler than most places in Washington.
December has the coldest nighttime temperatures for SeaTac with an average of 35.4°. This is one of the warmest places in Washington.
In SeaTac, there are 28.2 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Washington.
In SeaTac, 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 SeaTac 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 SeaTac with 6.4 inches of rain, and the driest month is July with 0.8 inches. The wettest season is Spring with 38% of yearly precipitation and 9% occurs in Autumn, which is the driest season. The annual rainfall of 38.9 inches in SeaTac means that it is about average compared to other places in Washington.
November is the rainiest month in SeaTac with 19.1 days of rain, and August is the driest month with only 4.8 rainy days. There are 156.8 rainy days annually in SeaTac, which is about average compared to other places in Washington. The rainiest season is Spring when it rains 33% of the time and the driest is Autumn with only a 12% chance of a rainy day.
An annual snowfall of 5.8 inches in SeaTac means that it is about average compared to other places in Washington. December is the snowiest month in SeaTac with 1.9 inches of snow, and 5 months of the year have significant snowfall.
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robert · Seattle, WA
no friends being gay
Over 13 years ago

in 2009 I was approached by amember of group to go to ther camp I thought they sweree my friends but after they used me and abused me by really adult bullying  More

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