Zip 99163 (Pullman, WA) Climate

Pullman, WA has a semi-arid climate that experiences hot summers and cold winters. The summers are generally warm and dry, with temperatures rarely exceeding 90 degrees Fahrenheit. Winters are cold and snowy, with average temperatures in the low 30s and temperatures occasionally dropping below freezing. Average annual precipitation is around 14 inches, most of which falls during the winter months as snowfall. Rainfall is typically light year-round, although thunderstorms can occur on occasion during the summer months.

Pullman (zip 99163), Washington gets 21 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Pullman (zip 99163) averages 42 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 169 sunny days per year in Pullman (zip 99163). The US average is 205 sunny days.

Pullman (zip 99163) gets some kind of precipitation, on average, 116 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 26
Rain: averages 21 inches of rain a year
Snow: averages 42 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for the 99163 zip code is 6.8 (10=best), which means it is less comfortable than most places in Washington.

9 Summer - 4.4 Winter

July, August and September are the most pleasant months in the 99163 zip code, while December and January are the least comfortable months.

Climate	Pullman, Washington	United States
	21.1 in.	38.1 in.
	41.8 in.	27.8 in.
	115.7 days	106.2 days
	169 days	205 days
	82.6°	85.8°
	25.9°	21.7°
	6.8	7
	3	4.3
	2520 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 99163 zip code with an average high temperature of 83.5°, which ranks it as warmer than most places in Washington. In the 99163 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 99163 zip code are September, July and August.

In the 99163 zip code, there are 16.2 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 99163 zip code with an average of 24.2°. This is colder than most places in Washington.

In the 99163 zip code, there are 121.9 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Washington.

In the 99163 zip code, there are 2.0 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Washington.

Humidity is low in the 99163 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.

November is the wettest month in the 99163 zip code with 2.9 inches of rain, and the driest month is August with 0.7 inches. The wettest season is Spring with 32% of yearly precipitation and 14% occurs in Autumn, which is the driest season. The annual rainfall of 21.1 inches in the 99163 zip code means that it is drier than most places in Washington.

November is the rainiest month in the 99163 zip code with 14.8 days of rain, and August is the driest month with only 3.8 rainy days. There are 115.7 rainy days annually in the 99163 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 41.8 inches in the 99163 zip code means that it is snowier than most places in Washington. January is the snowiest month in the 99163 zip code with 14.5 inches of snow, and 6 months of the year have significant snowfall.

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