Zip 99346 (Plymouth, WA) Climate

99346 Plymouth, WA has a mild climate with average temperatures ranging from the low 30s to the mid-70s throughout the year. The area experiences all four seasons but temperatures in winter rarely drop below freezing and snowfall is rare. During spring, temperatures range from cool to warm and wet weather is common during the months of April and May. Summer months typically remain dry and sunny with temperatures averaging in the low to mid-70s. Fall brings cooler temperatures, crisp air, and colorful foliage. Rainfall is most frequent in autumn months and may bring occasional storms.

Plymouth (zip 99346), Washington gets 9 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Plymouth (zip 99346) averages 2 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 192 sunny days per year in Plymouth (zip 99346). The US average is 205 sunny days.

Plymouth (zip 99346) gets some kind of precipitation, on average, 77 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 88 degrees
Winter Low: the January low is 29
Rain: averages 9 inches of rain a year
Snow: averages 2 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for the 99346 zip code is 7.6 (10=best), which means it is one of the most pleasant places in Washington.

9.2 Summer - 5.5 Winter

June, September and August are the most pleasant months in the 99346 zip code, while January and December are the least comfortable months.

Climate	Plymouth, Washington	United States
	Unlock	38.1 in.
	2.0 in.	Unlock
	Unlock	106.2 days
	192 days	Unlock
	88.3°	85.8°
	Unlock	21.7°
	7.6	Unlock
	Unlock	4.3
	299 ft.	Unlock

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.

July is the hottest month for the 99346 zip code with an average high temperature of 88.3°, which ranks it as one of the hottest places in Washington. In the 99346 zip code, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for the 99346 zip code are September, June and May.

In the 99346 zip code, there are 30.2 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 99346 zip code with an average of 28.3°. This is colder than most places in Washington.

In the 99346 zip code, there are 82.5 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Washington.

In the 99346 zip code, there are 0.4 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Washington.

Humidity is low in the 99346 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 99346 zip code with 1.3 inches of rain, and the driest month is July with 0.2 inches. The wettest season is Spring with 36% of yearly precipitation and 12% occurs in Autumn, which is the driest season. The annual rainfall of 8.9 inches in the 99346 zip code means that it is one of the driest places in Washington.

January is the rainiest month in the 99346 zip code with 10.4 days of rain, and July is the driest month with only 1.9 rainy days. There are 76.8 rainy days annually in the 99346 zip code, which is one of the least rainy places in Washington. The rainiest season is Spring when it rains 37% of the time and the driest is Autumn with only a 11% chance of a rainy day.

An annual snowfall of 2.0 inches in the 99346 zip code means that it is one of the least snowy places in Washington. February is the snowiest month in the 99346 zip code with 0.7 inches of snow, and 3 months of the year have significant snowfall.

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