Zip 99110 (Clayton, WA) Climate

Clayton, WA is located in the Puget Sound of Washington State. It has a moderate climate with warm summers and mild winters. In the summer months, temperatures typically reach low to mid 70s during the day and cool down to the 50s and 60s at night. During winter months, temperatures rarely dip below freezing, staying in the 30s and 40s during the day and dropping into the 20s at night. The area receives an average of 37 inches of rain each year, falling mostly from October to April.

Clayton (zip 99110), Washington gets 22 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Clayton (zip 99110) averages 51 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 174 sunny days per year in Clayton (zip 99110). The US average is 205 sunny days.

Clayton (zip 99110) gets some kind of precipitation, on average, 111 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 83 degrees
Winter Low: the January low is 21
Rain: averages 22 inches of rain a year
Snow: averages 51 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for the 99110 zip code is 6.5 (10=best), which means it is one of the least comfortable places in Washington.

8.9 Summer - 3.7 Winter

July, August and June are the most pleasant months in the 99110 zip code, while December and January are the least comfortable months.

Climate	Clayton, Washington	United States
	22.1 in.	38.1 in.
	50.8 in.	27.8 in.
	111.0 days	106.2 days
	174 days	205 days
	82.7°	85.8°
	21.2°	21.7°
	6.5	7
	2.9	4.3
	2203 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 99110 zip code with an average high temperature of 82.9°, which ranks it as warmer than most places in Washington. In the 99110 zip code, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for the 99110 zip code are July, June and August.

In the 99110 zip code, there are 14.0 days annually when the high temperature is over 90°, which is hotter than most places in Washington.

December has the coldest nighttime temperatures for the 99110 zip code with an average of 19.7°. This is one of the coldest places in Washington.

In the 99110 zip code, there are 166.7 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in Washington.

In the 99110 zip code, there are 4.1 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in Washington.

Humidity is low in the 99110 zip code, and some people might find the dryness to be uncomfortable. Days with noticeable humidity are rare throughout the year. A very dry climate can lead to cracked, itchy skin and dry eyes.

December is the wettest month in the 99110 zip code with 3.1 inches of rain, and the driest month is August with 0.8 inches. The wettest season is Spring with 33% of yearly precipitation and 16% occurs in Autumn, which is the driest season. The annual rainfall of 22.1 inches in the 99110 zip code means that it is drier than most places in Washington.

December is the rainiest month in the 99110 zip code with 13.5 days of rain, and August is the driest month with only 4.0 rainy days. There are 111.0 rainy days annually in the 99110 zip code, 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 15% chance of a rainy day.

An annual snowfall of 50.8 inches in the 99110 zip code means that it is one of the snowiest places in Washington. December is the snowiest month in the 99110 zip code with 17.6 inches of snow, and 6 months of the year have significant snowfall.

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