Zip 99110 (Clayton, WA) Weather


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The most pleasant months of the year for the 99110 zip code are July, June and August. In the 99110 zip code, there are 4 comfortable months with high temperatures in the range of 70-85°. 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. 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. Days with noticeable humidity are rare throughout the year.

Today's Weather - Clayton, WA

8 PM PST

Mostly Cloudy then Widespread Frost

41°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
TonightMostly Cloudy then Widespread Frost27° / 59°SW 5 mph
Wednesday NightPartly Cloudy then Areas Of Frost33° / 62°SW 2 to 10 mph
Thursday NightPartly Cloudy then Areas Of Frost36° / 65°NW 5 mph
Friday NightChance Rain Showers43° / 66°E 6 to 9 mph
Saturday NightChance Rain Showers41° / 57°E 7 to 10 mph
Sunday NightChance Rain Showers39° / 58°S 12 mph
Monday NightChance Rain Showers37° / 55°SW 9 to 15 mph

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 Clayton (zip 99110) area is 8.9 (10=best), which means it is more comfortable than most places in Washington.

8.9 / 10

A higher score indicates a more comfortable year-round climate. The US average for the comfort index is 7.8. Our index is based on the total number of days annually within the comfort range of 70-80 degrees, and we also applied a penalty for days of excessive humidity.


Average Monthly High and Low (°F)
HighLow
January33° 21°
February39° 22°
March48° 28°
April58° 33°
May66° 39°
June73° 45°
July83° 49°
August83° 48°
September73° 40°
October57° 32°
November41° 27°
December31° 20°
Hot, Freezing, Rainy, Snowy Days: Clayton
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January028138
February025105
March023124
April014101
May05100
June1080
July6040
August6040
September1450
October01690
November022134
December0291410

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.

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