Issaquah, Washington 

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Climate in Issaquah, Washington

Issaquah, Washington gets 53 inches of rain, on average, per year. The US average is 38 inches of rain per year.

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

On average, there are 154 sunny days per year in Issaquah. The US average is 205 sunny days.

Issaquah gets some kind of precipitation, on average, 173 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 76 degrees
Winter Low: the January low is 35
Rain: averages 53 inches of rain a year
Snow: averages 6 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for Issaquah is 7.1 (10=best), which means it is about average compared to other places in Washington.

7.1 / 10
August, July and September are the most pleasant months in Issaquah, while December and January are the least comfortable months.

Climate Averages
  Issaquah, WashingtonUnited States
  52.6 in.38.1 in.
  6.2 in.27.8 in.
  173.4 days106.2 days
  154 days205 days
  75.6°85.8°
  35.3°21.7°
  7.17
  2.64.3
  108 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 Issaquah with an average high temperature of 76.1°, which ranks it as cooler than most places in Washington. In Issaquah, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Issaquah are August, July and September.


December has the coldest nighttime temperatures for Issaquah with an average of 33.9°. This is warmer than most places in Washington.


In Issaquah, there are 3.1 days annually when the high temperature is over 90°, which is about average compared to other places in Washington.


In Issaquah, there are 43.1 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Washington.


In Issaquah, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Washington.


November is the wettest month in Issaquah with 8.6 inches of rain, and the driest month is July with 1.2 inches. The wettest season is Spring with 36% of yearly precipitation and 10% occurs in Autumn, which is the driest season. The annual rainfall of 52.6 inches in Issaquah means that it is wetter than most places in Washington.


November is the rainiest month in Issaquah with 20.4 days of rain, and August is the driest month with only 5.7 rainy days. There are 173.4 rainy days annually in Issaquah, which is rainier than most places in Washington. The rainiest season is Spring when it rains 31% of the time and the driest is Autumn with only a 14% chance of a rainy day.


An annual snowfall of 6.2 inches in Issaquah means that it is about average compared to other places in Washington. December is the snowiest month in Issaquah with 1.9 inches of snow, and 5 months of the year have significant snowfall.





CLIMATE MAP
  • Annual Rainfall (US Avg: 36.5")
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    Reviews for Issaquah    9 Reviews
    Issaquah has vanished. - 9/20/2019
    Issaquah WAS a 5-star place to live, play, work, own a home, and raise a family. That was up until the late '70s and early 80s. Issaquah was a country utopia for over a... Read More

    Start Your Review of Issaquah


    Great Location for now - 9/2/2012
    Issaquah provides great proximity to Seattle, a short morning commute (35 mins one way, just enough time for a short nap or reading), convenience to shopping, but also... Read More

    Good quality of life - 7/30/2010
    Issaquah is mostly an upper-income community and, as such, has quality amenities. It is a fairly expensive place to live...especially... Read More


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    ZIP CODES IN ISSAQUAH, WASHINGTON
    98027 98029

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